Home / 77,147.79-106,463.40-43,156.14

Finding the Fourth Proportional to 77,147.79, 106,463.40 and 43,156.14

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Solution

The fourth proportional to 77,147.79, 106,463.40 and 43,156.14 is: 59,555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,147.79 : 106,463.40 = 43,156.14 : x
  2. Step 2: Convert to fraction form
    77,147.79/106,463.40 = 43,156.14/x
  3. Step 3: Cross multiply
    77,147.79x = 106,463.40 × 43,156.14
  4. Step 4: Simplify right side
    77,147.79x = 4,594,549,395.28
  5. Step 5: Solve for x
    x = 4,594,549,395.28/77,147.79
  6. Step 6: Final answer
    x = 59,555.17

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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.