Home / 53,617.40-80,426.10-18,545.40

Finding the Fourth Proportional to 53,617.40, 80,426.10 and 18,545.40

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Solution

The fourth proportional to 53,617.40, 80,426.10 and 18,545.40 is: 27,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,617.40 : 80,426.10 = 18,545.40 : x
  2. Step 2: Convert to fraction form
    53,617.40/80,426.10 = 18,545.40/x
  3. Step 3: Cross multiply
    53,617.40x = 80,426.10 × 18,545.40
  4. Step 4: Simplify right side
    53,617.40x = 1,491,534,194.94
  5. Step 5: Solve for x
    x = 1,491,534,194.94/53,617.40
  6. Step 6: Final answer
    x = 27,818.10

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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.