Home / 90,715.50-136,026.60-40,752.75

Finding the Fourth Proportional to 90,715.50, 136,026.60 and 40,752.75

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Solution

The fourth proportional to 90,715.50, 136,026.60 and 40,752.75 is: 61,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,715.50 : 136,026.60 = 40,752.75 : x
  2. Step 2: Convert to fraction form
    90,715.50/136,026.60 = 40,752.75/x
  3. Step 3: Cross multiply
    90,715.50x = 136,026.60 × 40,752.75
  4. Step 4: Simplify right side
    90,715.50x = 5,543,458,023.15
  5. Step 5: Solve for x
    x = 5,543,458,023.15/90,715.50
  6. Step 6: Final answer
    x = 61,108.17

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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.