Home / 78,818.40-118,227.74-63,123.26

Finding the Fourth Proportional to 78,818.40, 118,227.74 and 63,123.26

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Solution

The fourth proportional to 78,818.40, 118,227.74 and 63,123.26 is: 94,684.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,818.40 : 118,227.74 = 63,123.26 : x
  2. Step 2: Convert to fraction form
    78,818.40/118,227.74 = 63,123.26/x
  3. Step 3: Cross multiply
    78,818.40x = 118,227.74 × 63,123.26
  4. Step 4: Simplify right side
    78,818.40x = 7,462,919,464.48
  5. Step 5: Solve for x
    x = 7,462,919,464.48/78,818.40
  6. Step 6: Final answer
    x = 94,684.99

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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.