Home / 77,020.99-106,278.45-43,025.28

Finding the Fourth Proportional to 77,020.99, 106,278.45 and 43,025.28

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Solution

The fourth proportional to 77,020.99, 106,278.45 and 43,025.28 is: 59,369.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,020.99 : 106,278.45 = 43,025.28 : x
  2. Step 2: Convert to fraction form
    77,020.99/106,278.45 = 43,025.28/x
  3. Step 3: Cross multiply
    77,020.99x = 106,278.45 × 43,025.28
  4. Step 4: Simplify right side
    77,020.99x = 4,572,659,322.70
  5. Step 5: Solve for x
    x = 4,572,659,322.70/77,020.99
  6. Step 6: Final answer
    x = 59,369.00

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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.