Home / 90,382.71-124,713.48-56,385.79

Finding the Fourth Proportional to 90,382.71, 124,713.48 and 56,385.79

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Solution

The fourth proportional to 90,382.71, 124,713.48 and 56,385.79 is: 77,803.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,382.71 : 124,713.48 = 56,385.79 : x
  2. Step 2: Convert to fraction form
    90,382.71/124,713.48 = 56,385.79/x
  3. Step 3: Cross multiply
    90,382.71x = 124,713.48 × 56,385.79
  4. Step 4: Simplify right side
    90,382.71x = 7,032,068,093.45
  5. Step 5: Solve for x
    x = 7,032,068,093.45/90,382.71
  6. Step 6: Final answer
    x = 77,803.24

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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.