Home / 91,008.20-136,512.30-59,515.40

Finding the Fourth Proportional to 91,008.20, 136,512.30 and 59,515.40

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Solution

The fourth proportional to 91,008.20, 136,512.30 and 59,515.40 is: 89,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,008.20 : 136,512.30 = 59,515.40 : x
  2. Step 2: Convert to fraction form
    91,008.20/136,512.30 = 59,515.40/x
  3. Step 3: Cross multiply
    91,008.20x = 136,512.30 × 59,515.40
  4. Step 4: Simplify right side
    91,008.20x = 8,124,584,139.42
  5. Step 5: Solve for x
    x = 8,124,584,139.42/91,008.20
  6. Step 6: Final answer
    x = 89,273.10

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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.