Home / 98,547.12-147,823.92-28,427.04

Finding the Fourth Proportional to 98,547.12, 147,823.92 and 28,427.04

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Solution

The fourth proportional to 98,547.12, 147,823.92 and 28,427.04 is: 42,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,547.12 : 147,823.92 = 28,427.04 : x
  2. Step 2: Convert to fraction form
    98,547.12/147,823.92 = 28,427.04/x
  3. Step 3: Cross multiply
    98,547.12x = 147,823.92 × 28,427.04
  4. Step 4: Simplify right side
    98,547.12x = 4,202,196,486.80
  5. Step 5: Solve for x
    x = 4,202,196,486.80/98,547.12
  6. Step 6: Final answer
    x = 42,641.49

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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.