Home / 88,275.42-121,820.88-47,989.26

Finding the Fourth Proportional to 88,275.42, 121,820.88 and 47,989.26

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Solution

The fourth proportional to 88,275.42, 121,820.88 and 47,989.26 is: 66,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,275.42 : 121,820.88 = 47,989.26 : x
  2. Step 2: Convert to fraction form
    88,275.42/121,820.88 = 47,989.26/x
  3. Step 3: Cross multiply
    88,275.42x = 121,820.88 × 47,989.26
  4. Step 4: Simplify right side
    88,275.42x = 5,846,093,883.75
  5. Step 5: Solve for x
    x = 5,846,093,883.75/88,275.42
  6. Step 6: Final answer
    x = 66,225.61

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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.