Home / 77,119.83-106,426.17-45,289.26

Finding the Fourth Proportional to 77,119.83, 106,426.17 and 45,289.26

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Solution

The fourth proportional to 77,119.83, 106,426.17 and 45,289.26 is: 62,499.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,119.83 : 106,426.17 = 45,289.26 : x
  2. Step 2: Convert to fraction form
    77,119.83/106,426.17 = 45,289.26/x
  3. Step 3: Cross multiply
    77,119.83x = 106,426.17 × 45,289.26
  4. Step 4: Simplify right side
    77,119.83x = 4,819,962,483.93
  5. Step 5: Solve for x
    x = 4,819,962,483.93/77,119.83
  6. Step 6: Final answer
    x = 62,499.65

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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.