Home / 77,148.68-115,794.32-47,624.20

Finding the Fourth Proportional to 77,148.68, 115,794.32 and 47,624.20

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Solution

The fourth proportional to 77,148.68, 115,794.32 and 47,624.20 is: 71,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,148.68 : 115,794.32 = 47,624.20 : x
  2. Step 2: Convert to fraction form
    77,148.68/115,794.32 = 47,624.20/x
  3. Step 3: Cross multiply
    77,148.68x = 115,794.32 × 47,624.20
  4. Step 4: Simplify right side
    77,148.68x = 5,514,611,854.54
  5. Step 5: Solve for x
    x = 5,514,611,854.54/77,148.68
  6. Step 6: Final answer
    x = 71,480.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.