Home / 90,366.28-124,709.70-56,394.88

Finding the Fourth Proportional to 90,366.28, 124,709.70 and 56,394.88

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Solution

The fourth proportional to 90,366.28, 124,709.70 and 56,394.88 is: 77,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,366.28 : 124,709.70 = 56,394.88 : x
  2. Step 2: Convert to fraction form
    90,366.28/124,709.70 = 56,394.88/x
  3. Step 3: Cross multiply
    90,366.28x = 124,709.70 × 56,394.88
  4. Step 4: Simplify right side
    90,366.28x = 7,032,988,566.34
  5. Step 5: Solve for x
    x = 7,032,988,566.34/90,366.28
  6. Step 6: Final answer
    x = 77,827.58

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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.