Home / 78,983.48-118,462.40-26,392.88

Finding the Fourth Proportional to 78,983.48, 118,462.40 and 26,392.88

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Solution

The fourth proportional to 78,983.48, 118,462.40 and 26,392.88 is: 39,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,983.48 : 118,462.40 = 26,392.88 : x
  2. Step 2: Convert to fraction form
    78,983.48/118,462.40 = 26,392.88/x
  3. Step 3: Cross multiply
    78,983.48x = 118,462.40 × 26,392.88
  4. Step 4: Simplify right side
    78,983.48x = 3,126,563,907.71
  5. Step 5: Solve for x
    x = 3,126,563,907.71/78,983.48
  6. Step 6: Final answer
    x = 39,585.04

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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.