Home / 99,639.55-137,501.44-54,316.53

Finding the Fourth Proportional to 99,639.55, 137,501.44 and 54,316.53

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Solution

The fourth proportional to 99,639.55, 137,501.44 and 54,316.53 is: 74,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,639.55 : 137,501.44 = 54,316.53 : x
  2. Step 2: Convert to fraction form
    99,639.55/137,501.44 = 54,316.53/x
  3. Step 3: Cross multiply
    99,639.55x = 137,501.44 × 54,316.53
  4. Step 4: Simplify right side
    99,639.55x = 7,468,600,783.14
  5. Step 5: Solve for x
    x = 7,468,600,783.14/99,639.55
  6. Step 6: Final answer
    x = 74,956.19

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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.