Home / 78,550.96-108,404.12-45,017.04

Finding the Fourth Proportional to 78,550.96, 108,404.12 and 45,017.04

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Solution

The fourth proportional to 78,550.96, 108,404.12 and 45,017.04 is: 62,125.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,550.96 : 108,404.12 = 45,017.04 : x
  2. Step 2: Convert to fraction form
    78,550.96/108,404.12 = 45,017.04/x
  3. Step 3: Cross multiply
    78,550.96x = 108,404.12 × 45,017.04
  4. Step 4: Simplify right side
    78,550.96x = 4,880,032,606.20
  5. Step 5: Solve for x
    x = 4,880,032,606.20/78,550.96
  6. Step 6: Final answer
    x = 62,125.69

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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.