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Finding the Fourth Proportional to 88,351.48, 121,878.57 and 52,516

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Solution

The fourth proportional to 88,351.48, 121,878.57 and 52,516 is: 72,444.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,351.48 : 121,878.57 = 52,516 : x
  2. Step 2: Convert to fraction form
    88,351.48/121,878.57 = 52,516/x
  3. Step 3: Cross multiply
    88,351.48x = 121,878.57 × 52,516
  4. Step 4: Simplify right side
    88,351.48x = 6,400,574,982.12
  5. Step 5: Solve for x
    x = 6,400,574,982.12/88,351.48
  6. Step 6: Final answer
    x = 72,444.46

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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.