Home / 80,776.51-111,320.02-58,076.16

Finding the Fourth Proportional to 80,776.51, 111,320.02 and 58,076.16

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Solution

The fourth proportional to 80,776.51, 111,320.02 and 58,076.16 is: 80,036.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,776.51 : 111,320.02 = 58,076.16 : x
  2. Step 2: Convert to fraction form
    80,776.51/111,320.02 = 58,076.16/x
  3. Step 3: Cross multiply
    80,776.51x = 111,320.02 × 58,076.16
  4. Step 4: Simplify right side
    80,776.51x = 6,465,039,292.72
  5. Step 5: Solve for x
    x = 6,465,039,292.72/80,776.51
  6. Step 6: Final answer
    x = 80,036.13

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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.