Home / 85,730.79-118,308.36-48,005.04

Finding the Fourth Proportional to 85,730.79, 118,308.36 and 48,005.04

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Solution

The fourth proportional to 85,730.79, 118,308.36 and 48,005.04 is: 66,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,730.79 : 118,308.36 = 48,005.04 : x
  2. Step 2: Convert to fraction form
    85,730.79/118,308.36 = 48,005.04/x
  3. Step 3: Cross multiply
    85,730.79x = 118,308.36 × 48,005.04
  4. Step 4: Simplify right side
    85,730.79x = 5,679,397,554.13
  5. Step 5: Solve for x
    x = 5,679,397,554.13/85,730.79
  6. Step 6: Final answer
    x = 66,246.88

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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.