Home / 80,547.12-111,204.36-59,288.40

Finding the Fourth Proportional to 80,547.12, 111,204.36 and 59,288.40

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Solution

The fourth proportional to 80,547.12, 111,204.36 and 59,288.40 is: 81,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,547.12 : 111,204.36 = 59,288.40 : x
  2. Step 2: Convert to fraction form
    80,547.12/111,204.36 = 59,288.40/x
  3. Step 3: Cross multiply
    80,547.12x = 111,204.36 × 59,288.40
  4. Step 4: Simplify right side
    80,547.12x = 6,593,128,577.42
  5. Step 5: Solve for x
    x = 6,593,128,577.42/80,547.12
  6. Step 6: Final answer
    x = 81,854.31

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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.