Home / 78,560.26-108,412.24-42,749.65

Finding the Fourth Proportional to 78,560.26, 108,412.24 and 42,749.65

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Solution

The fourth proportional to 78,560.26, 108,412.24 and 42,749.65 is: 58,994.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,560.26 : 108,412.24 = 42,749.65 : x
  2. Step 2: Convert to fraction form
    78,560.26/108,412.24 = 42,749.65/x
  3. Step 3: Cross multiply
    78,560.26x = 108,412.24 × 42,749.65
  4. Step 4: Simplify right side
    78,560.26x = 4,634,585,315.72
  5. Step 5: Solve for x
    x = 4,634,585,315.72/78,560.26
  6. Step 6: Final answer
    x = 58,994.02

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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.