Home / 85,938.68-118,617.18-58,725.78

Finding the Fourth Proportional to 85,938.68, 118,617.18 and 58,725.78

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Solution

The fourth proportional to 85,938.68, 118,617.18 and 58,725.78 is: 81,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,938.68 : 118,617.18 = 58,725.78 : x
  2. Step 2: Convert to fraction form
    85,938.68/118,617.18 = 58,725.78/x
  3. Step 3: Cross multiply
    85,938.68x = 118,617.18 × 58,725.78
  4. Step 4: Simplify right side
    85,938.68x = 6,965,886,416.90
  5. Step 5: Solve for x
    x = 6,965,886,416.90/85,938.68
  6. Step 6: Final answer
    x = 81,056.47

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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.