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Finding the Fourth Proportional to 98,770.80, 136,303.20 and 53,448.96

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Solution

The fourth proportional to 98,770.80, 136,303.20 and 53,448.96 is: 73,759.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,770.80 : 136,303.20 = 53,448.96 : x
  2. Step 2: Convert to fraction form
    98,770.80/136,303.20 = 53,448.96/x
  3. Step 3: Cross multiply
    98,770.80x = 136,303.20 × 53,448.96
  4. Step 4: Simplify right side
    98,770.80x = 7,285,264,284.67
  5. Step 5: Solve for x
    x = 7,285,264,284.67/98,770.80
  6. Step 6: Final answer
    x = 73,759.29

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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.