Home / 77,499.20-106,936.16-45,663.77

Finding the Fourth Proportional to 77,499.20, 106,936.16 and 45,663.77

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Solution

The fourth proportional to 77,499.20, 106,936.16 and 45,663.77 is: 63,008.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,499.20 : 106,936.16 = 45,663.77 : x
  2. Step 2: Convert to fraction form
    77,499.20/106,936.16 = 45,663.77/x
  3. Step 3: Cross multiply
    77,499.20x = 106,936.16 × 45,663.77
  4. Step 4: Simplify right side
    77,499.20x = 4,883,108,214.92
  5. Step 5: Solve for x
    x = 4,883,108,214.92/77,499.20
  6. Step 6: Final answer
    x = 63,008.50

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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.