Home / 77,190.10-106,543.29-45,369.22

Finding the Fourth Proportional to 77,190.10, 106,543.29 and 45,369.22

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Solution

The fourth proportional to 77,190.10, 106,543.29 and 45,369.22 is: 62,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,190.10 : 106,543.29 = 45,369.22 : x
  2. Step 2: Convert to fraction form
    77,190.10/106,543.29 = 45,369.22/x
  3. Step 3: Cross multiply
    77,190.10x = 106,543.29 × 45,369.22
  4. Step 4: Simplify right side
    77,190.10x = 4,833,785,963.53
  5. Step 5: Solve for x
    x = 4,833,785,963.53/77,190.10
  6. Step 6: Final answer
    x = 62,621.84

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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.