Home / 56,931,021.45-78,506,090.60-48,698,338.59

Finding the Fourth Proportional to 56,931,021.45, 78,506,090.60 and 48,698,338.59

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Solution

The fourth proportional to 56,931,021.45, 78,506,090.60 and 48,698,338.59 is: 67,153,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,931,021.45 : 78,506,090.60 = 48,698,338.59 : x
  2. Step 2: Convert to fraction form
    56,931,021.45/78,506,090.60 = 48,698,338.59/x
  3. Step 3: Cross multiply
    56,931,021.45x = 78,506,090.60 × 48,698,338.59
  4. Step 4: Simplify right side
    56,931,021.45x = 3,823,116,181,172,525
  5. Step 5: Solve for x
    x = 3,823,116,181,172,525/56,931,021.45
  6. Step 6: Final answer
    x = 67,153,479.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.