Home / 90,415.98-124,767.95-52,177.12

Finding the Fourth Proportional to 90,415.98, 124,767.95 and 52,177.12

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Solution

The fourth proportional to 90,415.98, 124,767.95 and 52,177.12 is: 72,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,415.98 : 124,767.95 = 52,177.12 : x
  2. Step 2: Convert to fraction form
    90,415.98/124,767.95 = 52,177.12/x
  3. Step 3: Cross multiply
    90,415.98x = 124,767.95 × 52,177.12
  4. Step 4: Simplify right side
    90,415.98x = 6,510,031,726.50
  5. Step 5: Solve for x
    x = 6,510,031,726.50/90,415.98
  6. Step 6: Final answer
    x = 72,000.90

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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.