Home / 90,158.20-124,376.43-58,337.35

Finding the Fourth Proportional to 90,158.20, 124,376.43 and 58,337.35

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Solution

The fourth proportional to 90,158.20, 124,376.43 and 58,337.35 is: 80,478.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,158.20 : 124,376.43 = 58,337.35 : x
  2. Step 2: Convert to fraction form
    90,158.20/124,376.43 = 58,337.35/x
  3. Step 3: Cross multiply
    90,158.20x = 124,376.43 × 58,337.35
  4. Step 4: Simplify right side
    90,158.20x = 7,255,791,328.66
  5. Step 5: Solve for x
    x = 7,255,791,328.66/90,158.20
  6. Step 6: Final answer
    x = 80,478.44

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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.