Home / 71,030.13-106,545.39-18,440.07

Finding the Fourth Proportional to 71,030.13, 106,545.39 and 18,440.07

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Solution

The fourth proportional to 71,030.13, 106,545.39 and 18,440.07 is: 27,660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,030.13 : 106,545.39 = 18,440.07 : x
  2. Step 2: Convert to fraction form
    71,030.13/106,545.39 = 18,440.07/x
  3. Step 3: Cross multiply
    71,030.13x = 106,545.39 × 18,440.07
  4. Step 4: Simplify right side
    71,030.13x = 1,964,704,449.78
  5. Step 5: Solve for x
    x = 1,964,704,449.78/71,030.13
  6. Step 6: Final answer
    x = 27,660.16

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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.