Home / 99,543.93-137,374.14-54,222.81

Finding the Fourth Proportional to 99,543.93, 137,374.14 and 54,222.81

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Solution

The fourth proportional to 99,543.93, 137,374.14 and 54,222.81 is: 74,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,543.93 : 137,374.14 = 54,222.81 : x
  2. Step 2: Convert to fraction form
    99,543.93/137,374.14 = 54,222.81/x
  3. Step 3: Cross multiply
    99,543.93x = 137,374.14 × 54,222.81
  4. Step 4: Simplify right side
    99,543.93x = 7,448,811,892.13
  5. Step 5: Solve for x
    x = 7,448,811,892.13/99,543.93
  6. Step 6: Final answer
    x = 74,829.39

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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.