Home / 78,708.60-118,063.74-63,013.38

Finding the Fourth Proportional to 78,708.60, 118,063.74 and 63,013.38

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Solution

The fourth proportional to 78,708.60, 118,063.74 and 63,013.38 is: 94,520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,708.60 : 118,063.74 = 63,013.38 : x
  2. Step 2: Convert to fraction form
    78,708.60/118,063.74 = 63,013.38/x
  3. Step 3: Cross multiply
    78,708.60x = 118,063.74 × 63,013.38
  4. Step 4: Simplify right side
    78,708.60x = 7,439,595,312.84
  5. Step 5: Solve for x
    x = 7,439,595,312.84/78,708.60
  6. Step 6: Final answer
    x = 94,520.74

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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.