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Finding the Fourth Proportional to 90,526.52, 124,941.62 and 52,800.78

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Solution

The fourth proportional to 90,526.52, 124,941.62 and 52,800.78 is: 72,873.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,526.52 : 124,941.62 = 52,800.78 : x
  2. Step 2: Convert to fraction form
    90,526.52/124,941.62 = 52,800.78/x
  3. Step 3: Cross multiply
    90,526.52x = 124,941.62 × 52,800.78
  4. Step 4: Simplify right side
    90,526.52x = 6,597,014,990.46
  5. Step 5: Solve for x
    x = 6,597,014,990.46/90,526.52
  6. Step 6: Final answer
    x = 72,873.84

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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.