Home / 62,439.65-86,109.21-40,921.55

Finding the Fourth Proportional to 62,439.65, 86,109.21 and 40,921.55

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Solution

The fourth proportional to 62,439.65, 86,109.21 and 40,921.55 is: 56,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,439.65 : 86,109.21 = 40,921.55 : x
  2. Step 2: Convert to fraction form
    62,439.65/86,109.21 = 40,921.55/x
  3. Step 3: Cross multiply
    62,439.65x = 86,109.21 × 40,921.55
  4. Step 4: Simplify right side
    62,439.65x = 3,523,722,342.48
  5. Step 5: Solve for x
    x = 3,523,722,342.48/62,439.65
  6. Step 6: Final answer
    x = 56,434.05

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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.