Home / 105,272.49-145,276.42-57,525.85

Finding the Fourth Proportional to 105,272.49, 145,276.42 and 57,525.85

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Solution

The fourth proportional to 105,272.49, 145,276.42 and 57,525.85 is: 79,385.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,272.49 : 145,276.42 = 57,525.85 : x
  2. Step 2: Convert to fraction form
    105,272.49/145,276.42 = 57,525.85/x
  3. Step 3: Cross multiply
    105,272.49x = 145,276.42 × 57,525.85
  4. Step 4: Simplify right side
    105,272.49x = 8,357,149,545.46
  5. Step 5: Solve for x
    x = 8,357,149,545.46/105,272.49
  6. Step 6: Final answer
    x = 79,385.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.