Home / 98,780.10-136,316.28-53,458.17

Finding the Fourth Proportional to 98,780.10, 136,316.28 and 53,458.17

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Solution

The fourth proportional to 98,780.10, 136,316.28 and 53,458.17 is: 73,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,780.10 : 136,316.28 = 53,458.17 : x
  2. Step 2: Convert to fraction form
    98,780.10/136,316.28 = 53,458.17/x
  3. Step 3: Cross multiply
    98,780.10x = 136,316.28 × 53,458.17
  4. Step 4: Simplify right side
    98,780.10x = 7,287,218,870.01
  5. Step 5: Solve for x
    x = 7,287,218,870.01/98,780.10
  6. Step 6: Final answer
    x = 73,772.13

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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.