Home / 76,897.08-115,304.52-39,441.88

Finding the Fourth Proportional to 76,897.08, 115,304.52 and 39,441.88

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Solution

The fourth proportional to 76,897.08, 115,304.52 and 39,441.88 is: 59,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,897.08 : 115,304.52 = 39,441.88 : x
  2. Step 2: Convert to fraction form
    76,897.08/115,304.52 = 39,441.88/x
  3. Step 3: Cross multiply
    76,897.08x = 115,304.52 × 39,441.88
  4. Step 4: Simplify right side
    76,897.08x = 4,547,827,041.30
  5. Step 5: Solve for x
    x = 4,547,827,041.30/76,897.08
  6. Step 6: Final answer
    x = 59,141.74

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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.