Home / 99,426.47-137,213.55-56,984.90

Finding the Fourth Proportional to 99,426.47, 137,213.55 and 56,984.90

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Solution

The fourth proportional to 99,426.47, 137,213.55 and 56,984.90 is: 78,642.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,426.47 : 137,213.55 = 56,984.90 : x
  2. Step 2: Convert to fraction form
    99,426.47/137,213.55 = 56,984.90/x
  3. Step 3: Cross multiply
    99,426.47x = 137,213.55 × 56,984.90
  4. Step 4: Simplify right side
    99,426.47x = 7,819,099,739.33
  5. Step 5: Solve for x
    x = 7,819,099,739.33/99,426.47
  6. Step 6: Final answer
    x = 78,642.04

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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.