Home / 55,898.09-77,132.35-37,788.21

Finding the Fourth Proportional to 55,898.09, 77,132.35 and 37,788.21

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Solution

The fourth proportional to 55,898.09, 77,132.35 and 37,788.21 is: 52,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,898.09 : 77,132.35 = 37,788.21 : x
  2. Step 2: Convert to fraction form
    55,898.09/77,132.35 = 37,788.21/x
  3. Step 3: Cross multiply
    55,898.09x = 77,132.35 × 37,788.21
  4. Step 4: Simplify right side
    55,898.09x = 2,914,693,163.61
  5. Step 5: Solve for x
    x = 2,914,693,163.61/55,898.09
  6. Step 6: Final answer
    x = 52,142.98

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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.