Home / 78,080.64-107,677.53-51,246.42

Finding the Fourth Proportional to 78,080.64, 107,677.53 and 51,246.42

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Solution

The fourth proportional to 78,080.64, 107,677.53 and 51,246.42 is: 70,671.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,080.64 : 107,677.53 = 51,246.42 : x
  2. Step 2: Convert to fraction form
    78,080.64/107,677.53 = 51,246.42/x
  3. Step 3: Cross multiply
    78,080.64x = 107,677.53 × 51,246.42
  4. Step 4: Simplify right side
    78,080.64x = 5,518,087,926.94
  5. Step 5: Solve for x
    x = 5,518,087,926.94/78,080.64
  6. Step 6: Final answer
    x = 70,671.65

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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.