Home / 56,064-77,368.32-30,913.68

Finding the Fourth Proportional to 56,064, 77,368.32 and 30,913.68

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Solution

The fourth proportional to 56,064, 77,368.32 and 30,913.68 is: 42,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,064 : 77,368.32 = 30,913.68 : x
  2. Step 2: Convert to fraction form
    56,064/77,368.32 = 30,913.68/x
  3. Step 3: Cross multiply
    56,064x = 77,368.32 × 30,913.68
  4. Step 4: Simplify right side
    56,064x = 2,391,739,486.62
  5. Step 5: Solve for x
    x = 2,391,739,486.62/56,064
  6. Step 6: Final answer
    x = 42,660.88

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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.