Home / 99,259.25-136,977.77-54,547.25

Finding the Fourth Proportional to 99,259.25, 136,977.77 and 54,547.25

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Solution

The fourth proportional to 99,259.25, 136,977.77 and 54,547.25 is: 75,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,259.25 : 136,977.77 = 54,547.25 : x
  2. Step 2: Convert to fraction form
    99,259.25/136,977.77 = 54,547.25/x
  3. Step 3: Cross multiply
    99,259.25x = 136,977.77 × 54,547.25
  4. Step 4: Simplify right side
    99,259.25x = 7,471,760,391.90
  5. Step 5: Solve for x
    x = 7,471,760,391.90/99,259.25
  6. Step 6: Final answer
    x = 75,275.21

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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.