Home / 78,345.93-108,119.21-46,514.91

Finding the Fourth Proportional to 78,345.93, 108,119.21 and 46,514.91

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Solution

The fourth proportional to 78,345.93, 108,119.21 and 46,514.91 is: 64,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345.93 : 108,119.21 = 46,514.91 : x
  2. Step 2: Convert to fraction form
    78,345.93/108,119.21 = 46,514.91/x
  3. Step 3: Cross multiply
    78,345.93x = 108,119.21 × 46,514.91
  4. Step 4: Simplify right side
    78,345.93x = 5,029,155,089.85
  5. Step 5: Solve for x
    x = 5,029,155,089.85/78,345.93
  6. Step 6: Final answer
    x = 64,191.66

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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.