Home / 80,282.16-119,934.95-51,971.58

Finding the Fourth Proportional to 80,282.16, 119,934.95 and 51,971.58

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Solution

The fourth proportional to 80,282.16, 119,934.95 and 51,971.58 is: 77,641.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,282.16 : 119,934.95 = 51,971.58 : x
  2. Step 2: Convert to fraction form
    80,282.16/119,934.95 = 51,971.58/x
  3. Step 3: Cross multiply
    80,282.16x = 119,934.95 × 51,971.58
  4. Step 4: Simplify right side
    80,282.16x = 6,233,208,588.86
  5. Step 5: Solve for x
    x = 6,233,208,588.86/80,282.16
  6. Step 6: Final answer
    x = 77,641.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.