Home / 57,815.80-86,723.70-18,376.90

Finding the Fourth Proportional to 57,815.80, 86,723.70 and 18,376.90

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Solution

The fourth proportional to 57,815.80, 86,723.70 and 18,376.90 is: 27,565.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,815.80 : 86,723.70 = 18,376.90 : x
  2. Step 2: Convert to fraction form
    57,815.80/86,723.70 = 18,376.90/x
  3. Step 3: Cross multiply
    57,815.80x = 86,723.70 × 18,376.90
  4. Step 4: Simplify right side
    57,815.80x = 1,593,712,762.53
  5. Step 5: Solve for x
    x = 1,593,712,762.53/57,815.80
  6. Step 6: Final answer
    x = 27,565.35

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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.