Home / 90,164.64-124,385.28-58,343.82

Finding the Fourth Proportional to 90,164.64, 124,385.28 and 58,343.82

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Solution

The fourth proportional to 90,164.64, 124,385.28 and 58,343.82 is: 80,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,164.64 : 124,385.28 = 58,343.82 : x
  2. Step 2: Convert to fraction form
    90,164.64/124,385.28 = 58,343.82/x
  3. Step 3: Cross multiply
    90,164.64x = 124,385.28 × 58,343.82
  4. Step 4: Simplify right side
    90,164.64x = 7,257,112,386.97
  5. Step 5: Solve for x
    x = 7,257,112,386.97/90,164.64
  6. Step 6: Final answer
    x = 80,487.34

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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.