Home / 90,713.70-136,070.55-28,376.10

Finding the Fourth Proportional to 90,713.70, 136,070.55 and 28,376.10

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Solution

The fourth proportional to 90,713.70, 136,070.55 and 28,376.10 is: 42,564.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,713.70 : 136,070.55 = 28,376.10 : x
  2. Step 2: Convert to fraction form
    90,713.70/136,070.55 = 28,376.10/x
  3. Step 3: Cross multiply
    90,713.70x = 136,070.55 × 28,376.10
  4. Step 4: Simplify right side
    90,713.70x = 3,861,151,533.86
  5. Step 5: Solve for x
    x = 3,861,151,533.86/90,713.70
  6. Step 6: Final answer
    x = 42,564.15

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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.