Home / 56,587.65-78,090.57-31,094.30

Finding the Fourth Proportional to 56,587.65, 78,090.57 and 31,094.30

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Solution

The fourth proportional to 56,587.65, 78,090.57 and 31,094.30 is: 42,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,587.65 : 78,090.57 = 31,094.30 : x
  2. Step 2: Convert to fraction form
    56,587.65/78,090.57 = 31,094.30/x
  3. Step 3: Cross multiply
    56,587.65x = 78,090.57 × 31,094.30
  4. Step 4: Simplify right side
    56,587.65x = 2,428,171,220.30
  5. Step 5: Solve for x
    x = 2,428,171,220.30/56,587.65
  6. Step 6: Final answer
    x = 42,909.91

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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.