Home / 91,319.60-136,979.40-59,826.80

Finding the Fourth Proportional to 91,319.60, 136,979.40 and 59,826.80

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Solution

The fourth proportional to 91,319.60, 136,979.40 and 59,826.80 is: 89,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,319.60 : 136,979.40 = 59,826.80 : x
  2. Step 2: Convert to fraction form
    91,319.60/136,979.40 = 59,826.80/x
  3. Step 3: Cross multiply
    91,319.60x = 136,979.40 × 59,826.80
  4. Step 4: Simplify right side
    91,319.60x = 8,195,039,167.92
  5. Step 5: Solve for x
    x = 8,195,039,167.92/91,319.60
  6. Step 6: Final answer
    x = 89,740.20

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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.