Home / 78,508.98-108,370.20-46,677.72

Finding the Fourth Proportional to 78,508.98, 108,370.20 and 46,677.72

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Solution

The fourth proportional to 78,508.98, 108,370.20 and 46,677.72 is: 64,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,508.98 : 108,370.20 = 46,677.72 : x
  2. Step 2: Convert to fraction form
    78,508.98/108,370.20 = 46,677.72/x
  3. Step 3: Cross multiply
    78,508.98x = 108,370.20 × 46,677.72
  4. Step 4: Simplify right side
    78,508.98x = 5,058,473,851.94
  5. Step 5: Solve for x
    x = 5,058,473,851.94/78,508.98
  6. Step 6: Final answer
    x = 64,431.79

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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.