Home / 90,188.05-124,437.09-58,318.60

Finding the Fourth Proportional to 90,188.05, 124,437.09 and 58,318.60

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Solution

The fourth proportional to 90,188.05, 124,437.09 and 58,318.60 is: 80,465.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,188.05 : 124,437.09 = 58,318.60 : x
  2. Step 2: Convert to fraction form
    90,188.05/124,437.09 = 58,318.60/x
  3. Step 3: Cross multiply
    90,188.05x = 124,437.09 × 58,318.60
  4. Step 4: Simplify right side
    90,188.05x = 7,256,996,876.87
  5. Step 5: Solve for x
    x = 7,256,996,876.87/90,188.05
  6. Step 6: Final answer
    x = 80,465.17

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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.