Home / 90,648.49-125,085.29-52,401.98

Finding the Fourth Proportional to 90,648.49, 125,085.29 and 52,401.98

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Solution

The fourth proportional to 90,648.49, 125,085.29 and 52,401.98 is: 72,309.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,648.49 : 125,085.29 = 52,401.98 : x
  2. Step 2: Convert to fraction form
    90,648.49/125,085.29 = 52,401.98/x
  3. Step 3: Cross multiply
    90,648.49x = 125,085.29 × 52,401.98
  4. Step 4: Simplify right side
    90,648.49x = 6,554,716,864.87
  5. Step 5: Solve for x
    x = 6,554,716,864.87/90,648.49
  6. Step 6: Final answer
    x = 72,309.17

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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.