Home / 76,184.04-105,145.59-47,508.36

Finding the Fourth Proportional to 76,184.04, 105,145.59 and 47,508.36

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Solution

The fourth proportional to 76,184.04, 105,145.59 and 47,508.36 is: 65,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,184.04 : 105,145.59 = 47,508.36 : x
  2. Step 2: Convert to fraction form
    76,184.04/105,145.59 = 47,508.36/x
  3. Step 3: Cross multiply
    76,184.04x = 105,145.59 × 47,508.36
  4. Step 4: Simplify right side
    76,184.04x = 4,995,294,542.13
  5. Step 5: Solve for x
    x = 4,995,294,542.13/76,184.04
  6. Step 6: Final answer
    x = 65,568.78

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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.