Home / 91,035.20-136,552.80-59,542.40

Finding the Fourth Proportional to 91,035.20, 136,552.80 and 59,542.40

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Solution

The fourth proportional to 91,035.20, 136,552.80 and 59,542.40 is: 89,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,035.20 : 136,552.80 = 59,542.40 : x
  2. Step 2: Convert to fraction form
    91,035.20/136,552.80 = 59,542.40/x
  3. Step 3: Cross multiply
    91,035.20x = 136,552.80 × 59,542.40
  4. Step 4: Simplify right side
    91,035.20x = 8,130,681,438.72
  5. Step 5: Solve for x
    x = 8,130,681,438.72/91,035.20
  6. Step 6: Final answer
    x = 89,313.60

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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.