Home / 77,308.17-106,685.67-43,316.72

Finding the Fourth Proportional to 77,308.17, 106,685.67 and 43,316.72

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Solution

The fourth proportional to 77,308.17, 106,685.67 and 43,316.72 is: 59,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,308.17 : 106,685.67 = 43,316.72 : x
  2. Step 2: Convert to fraction form
    77,308.17/106,685.67 = 43,316.72/x
  3. Step 3: Cross multiply
    77,308.17x = 106,685.67 × 43,316.72
  4. Step 4: Simplify right side
    77,308.17x = 4,621,273,295.40
  5. Step 5: Solve for x
    x = 4,621,273,295.40/77,308.17
  6. Step 6: Final answer
    x = 59,777.30

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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.