Home / 83,947.95-115,856.34-62,690.31

Finding the Fourth Proportional to 83,947.95, 115,856.34 and 62,690.31

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Solution

The fourth proportional to 83,947.95, 115,856.34 and 62,690.31 is: 86,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,947.95 : 115,856.34 = 62,690.31 : x
  2. Step 2: Convert to fraction form
    83,947.95/115,856.34 = 62,690.31/x
  3. Step 3: Cross multiply
    83,947.95x = 115,856.34 × 62,690.31
  4. Step 4: Simplify right side
    83,947.95x = 7,263,069,435.60
  5. Step 5: Solve for x
    x = 7,263,069,435.60/83,947.95
  6. Step 6: Final answer
    x = 86,518.73

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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.