Home / 88,395.88-121,985.92-48,109.67

Finding the Fourth Proportional to 88,395.88, 121,985.92 and 48,109.67

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Solution

The fourth proportional to 88,395.88, 121,985.92 and 48,109.67 is: 66,391.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,395.88 : 121,985.92 = 48,109.67 : x
  2. Step 2: Convert to fraction form
    88,395.88/121,985.92 = 48,109.67/x
  3. Step 3: Cross multiply
    88,395.88x = 121,985.92 × 48,109.67
  4. Step 4: Simplify right side
    88,395.88x = 5,868,702,741.89
  5. Step 5: Solve for x
    x = 5,868,702,741.89/88,395.88
  6. Step 6: Final answer
    x = 66,391.13

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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.