Home / 90,865.12-136,252.52-57,559.95

Finding the Fourth Proportional to 90,865.12, 136,252.52 and 57,559.95

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Solution

The fourth proportional to 90,865.12, 136,252.52 and 57,559.95 is: 86,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,865.12 : 136,252.52 = 57,559.95 : x
  2. Step 2: Convert to fraction form
    90,865.12/136,252.52 = 57,559.95/x
  3. Step 3: Cross multiply
    90,865.12x = 136,252.52 × 57,559.95
  4. Step 4: Simplify right side
    90,865.12x = 7,842,688,238.57
  5. Step 5: Solve for x
    x = 7,842,688,238.57/90,865.12
  6. Step 6: Final answer
    x = 86,311.32

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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.