Home / 90,293.12-124,666.08-56,314.88

Finding the Fourth Proportional to 90,293.12, 124,666.08 and 56,314.88

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Solution

The fourth proportional to 90,293.12, 124,666.08 and 56,314.88 is: 77,752.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,293.12 : 124,666.08 = 56,314.88 : x
  2. Step 2: Convert to fraction form
    90,293.12/124,666.08 = 56,314.88/x
  3. Step 3: Cross multiply
    90,293.12x = 124,666.08 × 56,314.88
  4. Step 4: Simplify right side
    90,293.12x = 7,020,555,335.27
  5. Step 5: Solve for x
    x = 7,020,555,335.27/90,293.12
  6. Step 6: Final answer
    x = 77,752.94

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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.