Home / 98,877.90-136,451.72-53,555.70

Finding the Fourth Proportional to 98,877.90, 136,451.72 and 53,555.70

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Solution

The fourth proportional to 98,877.90, 136,451.72 and 53,555.70 is: 73,906.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,877.90 : 136,451.72 = 53,555.70 : x
  2. Step 2: Convert to fraction form
    98,877.90/136,451.72 = 53,555.70/x
  3. Step 3: Cross multiply
    98,877.90x = 136,451.72 × 53,555.70
  4. Step 4: Simplify right side
    98,877.90x = 7,307,767,380.80
  5. Step 5: Solve for x
    x = 7,307,767,380.80/98,877.90
  6. Step 6: Final answer
    x = 73,906.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.