Home / 88,158.49-121,656.05-47,871.52

Finding the Fourth Proportional to 88,158.49, 121,656.05 and 47,871.52

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Solution

The fourth proportional to 88,158.49, 121,656.05 and 47,871.52 is: 66,061.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,158.49 : 121,656.05 = 47,871.52 : x
  2. Step 2: Convert to fraction form
    88,158.49/121,656.05 = 47,871.52/x
  3. Step 3: Cross multiply
    88,158.49x = 121,656.05 × 47,871.52
  4. Step 4: Simplify right side
    88,158.49x = 5,823,860,030.70
  5. Step 5: Solve for x
    x = 5,823,860,030.70/88,158.49
  6. Step 6: Final answer
    x = 66,061.25

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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.