Home / 90,826.30-136,200.57-28,501.66

Finding the Fourth Proportional to 90,826.30, 136,200.57 and 28,501.66

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Solution

The fourth proportional to 90,826.30, 136,200.57 and 28,501.66 is: 42,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,826.30 : 136,200.57 = 28,501.66 : x
  2. Step 2: Convert to fraction form
    90,826.30/136,200.57 = 28,501.66/x
  3. Step 3: Cross multiply
    90,826.30x = 136,200.57 × 28,501.66
  4. Step 4: Simplify right side
    90,826.30x = 3,881,942,337.95
  5. Step 5: Solve for x
    x = 3,881,942,337.95/90,826.30
  6. Step 6: Final answer
    x = 42,740.29

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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.