Home / 53,800.20-74,250.18-31,138.83

Finding the Fourth Proportional to 53,800.20, 74,250.18 and 31,138.83

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Solution

The fourth proportional to 53,800.20, 74,250.18 and 31,138.83 is: 42,975.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,800.20 : 74,250.18 = 31,138.83 : x
  2. Step 2: Convert to fraction form
    53,800.20/74,250.18 = 31,138.83/x
  3. Step 3: Cross multiply
    53,800.20x = 74,250.18 × 31,138.83
  4. Step 4: Simplify right side
    53,800.20x = 2,312,063,732.49
  5. Step 5: Solve for x
    x = 2,312,063,732.49/53,800.20
  6. Step 6: Final answer
    x = 42,975.00

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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.