Home / 45,130.19-67,695.10-18,488.54

Finding the Fourth Proportional to 45,130.19, 67,695.10 and 18,488.54

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Solution

The fourth proportional to 45,130.19, 67,695.10 and 18,488.54 is: 27,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130.19 : 67,695.10 = 18,488.54 : x
  2. Step 2: Convert to fraction form
    45,130.19/67,695.10 = 18,488.54/x
  3. Step 3: Cross multiply
    45,130.19x = 67,695.10 × 18,488.54
  4. Step 4: Simplify right side
    45,130.19x = 1,251,583,687.17
  5. Step 5: Solve for x
    x = 1,251,583,687.17/45,130.19
  6. Step 6: Final answer
    x = 27,732.74

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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.