Home / 45,545.30-67,860.02-42,998.82

Finding the Fourth Proportional to 45,545.30, 67,860.02 and 42,998.82

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Solution

The fourth proportional to 45,545.30, 67,860.02 and 42,998.82 is: 64,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,545.30 : 67,860.02 = 42,998.82 : x
  2. Step 2: Convert to fraction form
    45,545.30/67,860.02 = 42,998.82/x
  3. Step 3: Cross multiply
    45,545.30x = 67,860.02 × 42,998.82
  4. Step 4: Simplify right side
    45,545.30x = 2,917,900,785.18
  5. Step 5: Solve for x
    x = 2,917,900,785.18/45,545.30
  6. Step 6: Final answer
    x = 64,065.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.