Home / 88,398.32-121,985.69-48,111.98

Finding the Fourth Proportional to 88,398.32, 121,985.69 and 48,111.98

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Solution

The fourth proportional to 88,398.32, 121,985.69 and 48,111.98 is: 66,392.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,398.32 : 121,985.69 = 48,111.98 : x
  2. Step 2: Convert to fraction form
    88,398.32/121,985.69 = 48,111.98/x
  3. Step 3: Cross multiply
    88,398.32x = 121,985.69 × 48,111.98
  4. Step 4: Simplify right side
    88,398.32x = 5,868,972,227.08
  5. Step 5: Solve for x
    x = 5,868,972,227.08/88,398.32
  6. Step 6: Final answer
    x = 66,392.35

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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.