Home / 89,547.12-123,585.66-51,319.08

Finding the Fourth Proportional to 89,547.12, 123,585.66 and 51,319.08

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Solution

The fourth proportional to 89,547.12, 123,585.66 and 51,319.08 is: 70,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,547.12 : 123,585.66 = 51,319.08 : x
  2. Step 2: Convert to fraction form
    89,547.12/123,585.66 = 51,319.08/x
  3. Step 3: Cross multiply
    89,547.12x = 123,585.66 × 51,319.08
  4. Step 4: Simplify right side
    89,547.12x = 6,342,302,372.39
  5. Step 5: Solve for x
    x = 6,342,302,372.39/89,547.12
  6. Step 6: Final answer
    x = 70,826.42

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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.