Home / 77,382.53-116,106.60-42,281.18

Finding the Fourth Proportional to 77,382.53, 116,106.60 and 42,281.18

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Solution

The fourth proportional to 77,382.53, 116,106.60 and 42,281.18 is: 63,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,382.53 : 116,106.60 = 42,281.18 : x
  2. Step 2: Convert to fraction form
    77,382.53/116,106.60 = 42,281.18/x
  3. Step 3: Cross multiply
    77,382.53x = 116,106.60 × 42,281.18
  4. Step 4: Simplify right side
    77,382.53x = 4,909,124,053.79
  5. Step 5: Solve for x
    x = 4,909,124,053.79/77,382.53
  6. Step 6: Final answer
    x = 63,439.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.