Home / 85,968.48-118,641.87-49,671.48

Finding the Fourth Proportional to 85,968.48, 118,641.87 and 49,671.48

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Solution

The fourth proportional to 85,968.48, 118,641.87 and 49,671.48 is: 68,549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968.48 : 118,641.87 = 49,671.48 : x
  2. Step 2: Convert to fraction form
    85,968.48/118,641.87 = 49,671.48/x
  3. Step 3: Cross multiply
    85,968.48x = 118,641.87 × 49,671.48
  4. Step 4: Simplify right side
    85,968.48x = 5,893,117,272.87
  5. Step 5: Solve for x
    x = 5,893,117,272.87/85,968.48
  6. Step 6: Final answer
    x = 68,549.74

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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.