Home / 101,430.03-139,961.24-58,423.51

Finding the Fourth Proportional to 101,430.03, 139,961.24 and 58,423.51

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Solution

The fourth proportional to 101,430.03, 139,961.24 and 58,423.51 is: 80,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,430.03 : 139,961.24 = 58,423.51 : x
  2. Step 2: Convert to fraction form
    101,430.03/139,961.24 = 58,423.51/x
  3. Step 3: Cross multiply
    101,430.03x = 139,961.24 × 58,423.51
  4. Step 4: Simplify right side
    101,430.03x = 8,177,026,204.95
  5. Step 5: Solve for x
    x = 8,177,026,204.95/101,430.03
  6. Step 6: Final answer
    x = 80,617.41

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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.