Home / 83,641.02-115,416.93-49,643.70

Finding the Fourth Proportional to 83,641.02, 115,416.93 and 49,643.70

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Solution

The fourth proportional to 83,641.02, 115,416.93 and 49,643.70 is: 68,503.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,641.02 : 115,416.93 = 49,643.70 : x
  2. Step 2: Convert to fraction form
    83,641.02/115,416.93 = 49,643.70/x
  3. Step 3: Cross multiply
    83,641.02x = 115,416.93 × 49,643.70
  4. Step 4: Simplify right side
    83,641.02x = 5,729,723,447.84
  5. Step 5: Solve for x
    x = 5,729,723,447.84/83,641.02
  6. Step 6: Final answer
    x = 68,503.75

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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.