Home / 54,545.25-75,272.90-30,671.72

Finding the Fourth Proportional to 54,545.25, 75,272.90 and 30,671.72

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Solution

The fourth proportional to 54,545.25, 75,272.90 and 30,671.72 is: 42,327.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,545.25 : 75,272.90 = 30,671.72 : x
  2. Step 2: Convert to fraction form
    54,545.25/75,272.90 = 30,671.72/x
  3. Step 3: Cross multiply
    54,545.25x = 75,272.90 × 30,671.72
  4. Step 4: Simplify right side
    54,545.25x = 2,308,748,782.66
  5. Step 5: Solve for x
    x = 2,308,748,782.66/54,545.25
  6. Step 6: Final answer
    x = 42,327.22

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1.5x scale

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.