Home / 57,008.18-85,529.42-40,400.21

Finding the Fourth Proportional to 57,008.18, 85,529.42 and 40,400.21

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Solution

The fourth proportional to 57,008.18, 85,529.42 and 40,400.21 is: 60,612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.18 : 85,529.42 = 40,400.21 : x
  2. Step 2: Convert to fraction form
    57,008.18/85,529.42 = 40,400.21/x
  3. Step 3: Cross multiply
    57,008.18x = 85,529.42 × 40,400.21
  4. Step 4: Simplify right side
    57,008.18x = 3,455,406,529.18
  5. Step 5: Solve for x
    x = 3,455,406,529.18/57,008.18
  6. Step 6: Final answer
    x = 60,612.47

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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.