Home / 77,834.76-107,392.15-47,609.04

Finding the Fourth Proportional to 77,834.76, 107,392.15 and 47,609.04

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Solution

The fourth proportional to 77,834.76, 107,392.15 and 47,609.04 is: 65,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,834.76 : 107,392.15 = 47,609.04 : x
  2. Step 2: Convert to fraction form
    77,834.76/107,392.15 = 47,609.04/x
  3. Step 3: Cross multiply
    77,834.76x = 107,392.15 × 47,609.04
  4. Step 4: Simplify right side
    77,834.76x = 5,112,837,165.04
  5. Step 5: Solve for x
    x = 5,112,837,165.04/77,834.76
  6. Step 6: Final answer
    x = 65,688.35

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1.5x scale

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.