Home / 77,225.48-115,717.26-61,638.92

Finding the Fourth Proportional to 77,225.48, 115,717.26 and 61,638.92

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Solution

The fourth proportional to 77,225.48, 115,717.26 and 61,638.92 is: 92,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,225.48 : 115,717.26 = 61,638.92 : x
  2. Step 2: Convert to fraction form
    77,225.48/115,717.26 = 61,638.92/x
  3. Step 3: Cross multiply
    77,225.48x = 115,717.26 × 61,638.92
  4. Step 4: Simplify right side
    77,225.48x = 7,132,686,931.76
  5. Step 5: Solve for x
    x = 7,132,686,931.76/77,225.48
  6. Step 6: Final answer
    x = 92,361.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.