Home / 77,001.85-115,445.18-41,981.05

Finding the Fourth Proportional to 77,001.85, 115,445.18 and 41,981.05

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Solution

The fourth proportional to 77,001.85, 115,445.18 and 41,981.05 is: 62,940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,001.85 : 115,445.18 = 41,981.05 : x
  2. Step 2: Convert to fraction form
    77,001.85/115,445.18 = 41,981.05/x
  3. Step 3: Cross multiply
    77,001.85x = 115,445.18 × 41,981.05
  4. Step 4: Simplify right side
    77,001.85x = 4,846,509,663.93
  5. Step 5: Solve for x
    x = 4,846,509,663.93/77,001.85
  6. Step 6: Final answer
    x = 62,940.17

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1.5x scale

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.