Home / 78,520.41-108,347.64-46,677.69

Finding the Fourth Proportional to 78,520.41, 108,347.64 and 46,677.69

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Solution

The fourth proportional to 78,520.41, 108,347.64 and 46,677.69 is: 64,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,520.41 : 108,347.64 = 46,677.69 : x
  2. Step 2: Convert to fraction form
    78,520.41/108,347.64 = 46,677.69/x
  3. Step 3: Cross multiply
    78,520.41x = 108,347.64 × 46,677.69
  4. Step 4: Simplify right side
    78,520.41x = 5,057,417,552.15
  5. Step 5: Solve for x
    x = 5,057,417,552.15/78,520.41
  6. Step 6: Final answer
    x = 64,408.95

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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.