Home / 78,566.04-117,808.28-38,567.20

Finding the Fourth Proportional to 78,566.04, 117,808.28 and 38,567.20

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Solution

The fourth proportional to 78,566.04, 117,808.28 and 38,567.20 is: 57,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,566.04 : 117,808.28 = 38,567.20 : x
  2. Step 2: Convert to fraction form
    78,566.04/117,808.28 = 38,567.20/x
  3. Step 3: Cross multiply
    78,566.04x = 117,808.28 × 38,567.20
  4. Step 4: Simplify right side
    78,566.04x = 4,543,535,496.42
  5. Step 5: Solve for x
    x = 4,543,535,496.42/78,566.04
  6. Step 6: Final answer
    x = 57,830.78

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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.