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Finding the Fourth Proportional to 90,957.56, 124,612.30 and 87,548.53

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Solution

The fourth proportional to 90,957.56, 124,612.30 and 87,548.53 is: 119,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,957.56 : 124,612.30 = 87,548.53 : x
  2. Step 2: Convert to fraction form
    90,957.56/124,612.30 = 87,548.53/x
  3. Step 3: Cross multiply
    90,957.56x = 124,612.30 × 87,548.53
  4. Step 4: Simplify right side
    90,957.56x = 10,909,623,684.92
  5. Step 5: Solve for x
    x = 10,909,623,684.92/90,957.56
  6. Step 6: Final answer
    x = 119,941.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.