Home / 78,475.38-108,295.23-58,421.94

Finding the Fourth Proportional to 78,475.38, 108,295.23 and 58,421.94

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Solution

The fourth proportional to 78,475.38, 108,295.23 and 58,421.94 is: 80,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,475.38 : 108,295.23 = 58,421.94 : x
  2. Step 2: Convert to fraction form
    78,475.38/108,295.23 = 58,421.94/x
  3. Step 3: Cross multiply
    78,475.38x = 108,295.23 × 58,421.94
  4. Step 4: Simplify right side
    78,475.38x = 6,326,817,429.35
  5. Step 5: Solve for x
    x = 6,326,817,429.35/78,475.38
  6. Step 6: Final answer
    x = 80,621.69

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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.