Home / 78,821.40-118,232.10-49,296.90

Finding the Fourth Proportional to 78,821.40, 118,232.10 and 49,296.90

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Solution

The fourth proportional to 78,821.40, 118,232.10 and 49,296.90 is: 73,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,821.40 : 118,232.10 = 49,296.90 : x
  2. Step 2: Convert to fraction form
    78,821.40/118,232.10 = 49,296.90/x
  3. Step 3: Cross multiply
    78,821.40x = 118,232.10 × 49,296.90
  4. Step 4: Simplify right side
    78,821.40x = 5,828,476,010.49
  5. Step 5: Solve for x
    x = 5,828,476,010.49/78,821.40
  6. Step 6: Final answer
    x = 73,945.35

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1.5x scale

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.