Home / 78,715.06-118,014.27-47,543.02

Finding the Fourth Proportional to 78,715.06, 118,014.27 and 47,543.02

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Solution

The fourth proportional to 78,715.06, 118,014.27 and 47,543.02 is: 71,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,715.06 : 118,014.27 = 47,543.02 : x
  2. Step 2: Convert to fraction form
    78,715.06/118,014.27 = 47,543.02/x
  3. Step 3: Cross multiply
    78,715.06x = 118,014.27 × 47,543.02
  4. Step 4: Simplify right side
    78,715.06x = 5,610,754,325.57
  5. Step 5: Solve for x
    x = 5,610,754,325.57/78,715.06
  6. Step 6: Final answer
    x = 71,279.30

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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.