Home / 90,294.12-134,892.08-58,444.72

Finding the Fourth Proportional to 90,294.12, 134,892.08 and 58,444.72

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Solution

The fourth proportional to 90,294.12, 134,892.08 and 58,444.72 is: 87,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,294.12 : 134,892.08 = 58,444.72 : x
  2. Step 2: Convert to fraction form
    90,294.12/134,892.08 = 58,444.72/x
  3. Step 3: Cross multiply
    90,294.12x = 134,892.08 × 58,444.72
  4. Step 4: Simplify right side
    90,294.12x = 7,883,729,845.82
  5. Step 5: Solve for x
    x = 7,883,729,845.82/90,294.12
  6. Step 6: Final answer
    x = 87,311.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.