Home / 89,410.71-123,335.46-55,818.39

Finding the Fourth Proportional to 89,410.71, 123,335.46 and 55,818.39

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Solution

The fourth proportional to 89,410.71, 123,335.46 and 55,818.39 is: 76,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,410.71 : 123,335.46 = 55,818.39 : x
  2. Step 2: Convert to fraction form
    89,410.71/123,335.46 = 55,818.39/x
  3. Step 3: Cross multiply
    89,410.71x = 123,335.46 × 55,818.39
  4. Step 4: Simplify right side
    89,410.71x = 6,884,386,807.11
  5. Step 5: Solve for x
    x = 6,884,386,807.11/89,410.71
  6. Step 6: Final answer
    x = 76,997.34

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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.