Home / 81,374.12-112,309.58-48,666.39

Finding the Fourth Proportional to 81,374.12, 112,309.58 and 48,666.39

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Solution

The fourth proportional to 81,374.12, 112,309.58 and 48,666.39 is: 67,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.12 : 112,309.58 = 48,666.39 : x
  2. Step 2: Convert to fraction form
    81,374.12/112,309.58 = 48,666.39/x
  3. Step 3: Cross multiply
    81,374.12x = 112,309.58 × 48,666.39
  4. Step 4: Simplify right side
    81,374.12x = 5,465,701,821.02
  5. Step 5: Solve for x
    x = 5,465,701,821.02/81,374.12
  6. Step 6: Final answer
    x = 67,167.57

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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.