Home / 91,095.06-136,657.08-38,505

Finding the Fourth Proportional to 91,095.06, 136,657.08 and 38,505

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Solution

The fourth proportional to 91,095.06, 136,657.08 and 38,505 is: 57,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,095.06 : 136,657.08 = 38,505 : x
  2. Step 2: Convert to fraction form
    91,095.06/136,657.08 = 38,505/x
  3. Step 3: Cross multiply
    91,095.06x = 136,657.08 × 38,505
  4. Step 4: Simplify right side
    91,095.06x = 5,261,980,865.40
  5. Step 5: Solve for x
    x = 5,261,980,865.40/91,095.06
  6. Step 6: Final answer
    x = 57,763.62

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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.