Home / 91,401.92-136,946.40-49,878.08

Finding the Fourth Proportional to 91,401.92, 136,946.40 and 49,878.08

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Solution

The fourth proportional to 91,401.92, 136,946.40 and 49,878.08 is: 74,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,401.92 : 136,946.40 = 49,878.08 : x
  2. Step 2: Convert to fraction form
    91,401.92/136,946.40 = 49,878.08/x
  3. Step 3: Cross multiply
    91,401.92x = 136,946.40 × 49,878.08
  4. Step 4: Simplify right side
    91,401.92x = 6,830,623,494.91
  5. Step 5: Solve for x
    x = 6,830,623,494.91/91,401.92
  6. Step 6: Final answer
    x = 74,731.73

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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.