Home / 83,815.80-125,723.70-48,386.40

Finding the Fourth Proportional to 83,815.80, 125,723.70 and 48,386.40

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Solution

The fourth proportional to 83,815.80, 125,723.70 and 48,386.40 is: 72,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,815.80 : 125,723.70 = 48,386.40 : x
  2. Step 2: Convert to fraction form
    83,815.80/125,723.70 = 48,386.40/x
  3. Step 3: Cross multiply
    83,815.80x = 125,723.70 × 48,386.40
  4. Step 4: Simplify right side
    83,815.80x = 6,083,317,237.68
  5. Step 5: Solve for x
    x = 6,083,317,237.68/83,815.80
  6. Step 6: Final answer
    x = 72,579.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.