Home / 85,963.20-118,623.27-47,719.74

Finding the Fourth Proportional to 85,963.20, 118,623.27 and 47,719.74

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Solution

The fourth proportional to 85,963.20, 118,623.27 and 47,719.74 is: 65,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,963.20 : 118,623.27 = 47,719.74 : x
  2. Step 2: Convert to fraction form
    85,963.20/118,623.27 = 47,719.74/x
  3. Step 3: Cross multiply
    85,963.20x = 118,623.27 × 47,719.74
  4. Step 4: Simplify right side
    85,963.20x = 5,660,671,602.35
  5. Step 5: Solve for x
    x = 5,660,671,602.35/85,963.20
  6. Step 6: Final answer
    x = 65,849.94

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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.