Home / 57,130.17-78,837.60-31,635.03

Finding the Fourth Proportional to 57,130.17, 78,837.60 and 31,635.03

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Solution

The fourth proportional to 57,130.17, 78,837.60 and 31,635.03 is: 43,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,130.17 : 78,837.60 = 31,635.03 : x
  2. Step 2: Convert to fraction form
    57,130.17/78,837.60 = 31,635.03/x
  3. Step 3: Cross multiply
    57,130.17x = 78,837.60 × 31,635.03
  4. Step 4: Simplify right side
    57,130.17x = 2,494,029,841.13
  5. Step 5: Solve for x
    x = 2,494,029,841.13/57,130.17
  6. Step 6: Final answer
    x = 43,655.21

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1.5x scale

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.