Home / 90,603.17-135,844.77-43,225.57

Finding the Fourth Proportional to 90,603.17, 135,844.77 and 43,225.57

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Solution

The fourth proportional to 90,603.17, 135,844.77 and 43,225.57 is: 64,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,603.17 : 135,844.77 = 43,225.57 : x
  2. Step 2: Convert to fraction form
    90,603.17/135,844.77 = 43,225.57/x
  3. Step 3: Cross multiply
    90,603.17x = 135,844.77 × 43,225.57
  4. Step 4: Simplify right side
    90,603.17x = 5,871,967,703.53
  5. Step 5: Solve for x
    x = 5,871,967,703.53/90,603.17
  6. Step 6: Final answer
    x = 64,809.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.