Home / 57,545.75-86,312.47-15,430.05

Finding the Fourth Proportional to 57,545.75, 86,312.47 and 15,430.05

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Solution

The fourth proportional to 57,545.75, 86,312.47 and 15,430.05 is: 23,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,545.75 : 86,312.47 = 15,430.05 : x
  2. Step 2: Convert to fraction form
    57,545.75/86,312.47 = 15,430.05/x
  3. Step 3: Cross multiply
    57,545.75x = 86,312.47 × 15,430.05
  4. Step 4: Simplify right side
    57,545.75x = 1,331,805,727.72
  5. Step 5: Solve for x
    x = 1,331,805,727.72/57,545.75
  6. Step 6: Final answer
    x = 23,143.42

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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.