Home / 61,389.36-84,756.26-42,040.66

Finding the Fourth Proportional to 61,389.36, 84,756.26 and 42,040.66

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Solution

The fourth proportional to 61,389.36, 84,756.26 and 42,040.66 is: 58,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,389.36 : 84,756.26 = 42,040.66 : x
  2. Step 2: Convert to fraction form
    61,389.36/84,756.26 = 42,040.66/x
  3. Step 3: Cross multiply
    61,389.36x = 84,756.26 × 42,040.66
  4. Step 4: Simplify right side
    61,389.36x = 3,563,209,109.53
  5. Step 5: Solve for x
    x = 3,563,209,109.53/61,389.36
  6. Step 6: Final answer
    x = 58,042.78

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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.