Home / 87,577.40-120,897.06-57,364.00

Finding the Fourth Proportional to 87,577.40, 120,897.06 and 57,364.00

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Solution

The fourth proportional to 87,577.40, 120,897.06 and 57,364.00 is: 79,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,577.40 : 120,897.06 = 57,364.00 : x
  2. Step 2: Convert to fraction form
    87,577.40/120,897.06 = 57,364.00/x
  3. Step 3: Cross multiply
    87,577.40x = 120,897.06 × 57,364.00
  4. Step 4: Simplify right side
    87,577.40x = 6,935,138,432.48
  5. Step 5: Solve for x
    x = 6,935,138,432.48/87,577.40
  6. Step 6: Final answer
    x = 79,188.67

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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.