Home / 77,109.20-106,410.10-43,117.76

Finding the Fourth Proportional to 77,109.20, 106,410.10 and 43,117.76

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Solution

The fourth proportional to 77,109.20, 106,410.10 and 43,117.76 is: 59,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,109.20 : 106,410.10 = 43,117.76 : x
  2. Step 2: Convert to fraction form
    77,109.20/106,410.10 = 43,117.76/x
  3. Step 3: Cross multiply
    77,109.20x = 106,410.10 × 43,117.76
  4. Step 4: Simplify right side
    77,109.20x = 4,588,164,613.94
  5. Step 5: Solve for x
    x = 4,588,164,613.94/77,109.20
  6. Step 6: Final answer
    x = 59,502.17

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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.