Home / 63,057.56-86,970.21-40,398.65

Finding the Fourth Proportional to 63,057.56, 86,970.21 and 40,398.65

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Solution

The fourth proportional to 63,057.56, 86,970.21 and 40,398.65 is: 55,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,057.56 : 86,970.21 = 40,398.65 : x
  2. Step 2: Convert to fraction form
    63,057.56/86,970.21 = 40,398.65/x
  3. Step 3: Cross multiply
    63,057.56x = 86,970.21 × 40,398.65
  4. Step 4: Simplify right side
    63,057.56x = 3,513,478,814.01
  5. Step 5: Solve for x
    x = 3,513,478,814.01/63,057.56
  6. Step 6: Final answer
    x = 55,718.60

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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.