Home / 88,381.96-121,825.20-59,692.40

Finding the Fourth Proportional to 88,381.96, 121,825.20 and 59,692.40

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Solution

The fourth proportional to 88,381.96, 121,825.20 and 59,692.40 is: 82,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,381.96 : 121,825.20 = 59,692.40 : x
  2. Step 2: Convert to fraction form
    88,381.96/121,825.20 = 59,692.40/x
  3. Step 3: Cross multiply
    88,381.96x = 121,825.20 × 59,692.40
  4. Step 4: Simplify right side
    88,381.96x = 7,272,038,568.48
  5. Step 5: Solve for x
    x = 7,272,038,568.48/88,381.96
  6. Step 6: Final answer
    x = 82,279.67

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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.