Home / 91,127.20-136,690.80-59,634.40

Finding the Fourth Proportional to 91,127.20, 136,690.80 and 59,634.40

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Solution

The fourth proportional to 91,127.20, 136,690.80 and 59,634.40 is: 89,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,127.20 : 136,690.80 = 59,634.40 : x
  2. Step 2: Convert to fraction form
    91,127.20/136,690.80 = 59,634.40/x
  3. Step 3: Cross multiply
    91,127.20x = 136,690.80 × 59,634.40
  4. Step 4: Simplify right side
    91,127.20x = 8,151,473,843.52
  5. Step 5: Solve for x
    x = 8,151,473,843.52/91,127.20
  6. Step 6: Final answer
    x = 89,451.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.