Home / 90,436.68-124,810.20-52,713.36

Finding the Fourth Proportional to 90,436.68, 124,810.20 and 52,713.36

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Solution

The fourth proportional to 90,436.68, 124,810.20 and 52,713.36 is: 72,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,436.68 : 124,810.20 = 52,713.36 : x
  2. Step 2: Convert to fraction form
    90,436.68/124,810.20 = 52,713.36/x
  3. Step 3: Cross multiply
    90,436.68x = 124,810.20 × 52,713.36
  4. Step 4: Simplify right side
    90,436.68x = 6,579,165,004.27
  5. Step 5: Solve for x
    x = 6,579,165,004.27/90,436.68
  6. Step 6: Final answer
    x = 72,748.86

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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.