Home / 88,280-121,827.72-47,993.66

Finding the Fourth Proportional to 88,280, 121,827.72 and 47,993.66

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Solution

The fourth proportional to 88,280, 121,827.72 and 47,993.66 is: 66,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,280 : 121,827.72 = 47,993.66 : x
  2. Step 2: Convert to fraction form
    88,280/121,827.72 = 47,993.66/x
  3. Step 3: Cross multiply
    88,280x = 121,827.72 × 47,993.66
  4. Step 4: Simplify right side
    88,280x = 5,846,958,172.26
  5. Step 5: Solve for x
    x = 5,846,958,172.26/88,280
  6. Step 6: Final answer
    x = 66,231.97

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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.