Home / 91,617.60-137,446.02-28,436.40

Finding the Fourth Proportional to 91,617.60, 137,446.02 and 28,436.40

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Solution

The fourth proportional to 91,617.60, 137,446.02 and 28,436.40 is: 42,660.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,617.60 : 137,446.02 = 28,436.40 : x
  2. Step 2: Convert to fraction form
    91,617.60/137,446.02 = 28,436.40/x
  3. Step 3: Cross multiply
    91,617.60x = 137,446.02 × 28,436.40
  4. Step 4: Simplify right side
    91,617.60x = 3,908,470,003.13
  5. Step 5: Solve for x
    x = 3,908,470,003.13/91,617.60
  6. Step 6: Final answer
    x = 42,660.69

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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.