Home / 78,985.68-118,376.46-59,108.28

Finding the Fourth Proportional to 78,985.68, 118,376.46 and 59,108.28

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Solution

The fourth proportional to 78,985.68, 118,376.46 and 59,108.28 is: 88,586.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,985.68 : 118,376.46 = 59,108.28 : x
  2. Step 2: Convert to fraction form
    78,985.68/118,376.46 = 59,108.28/x
  3. Step 3: Cross multiply
    78,985.68x = 118,376.46 × 59,108.28
  4. Step 4: Simplify right side
    78,985.68x = 6,997,028,943.09
  5. Step 5: Solve for x
    x = 6,997,028,943.09/78,985.68
  6. Step 6: Final answer
    x = 88,586.04

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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.