Home / 55,809.03-77,018.21-31,943.40

Finding the Fourth Proportional to 55,809.03, 77,018.21 and 31,943.40

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Solution

The fourth proportional to 55,809.03, 77,018.21 and 31,943.40 is: 44,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,809.03 : 77,018.21 = 31,943.40 : x
  2. Step 2: Convert to fraction form
    55,809.03/77,018.21 = 31,943.40/x
  3. Step 3: Cross multiply
    55,809.03x = 77,018.21 × 31,943.40
  4. Step 4: Simplify right side
    55,809.03x = 2,460,223,160.57
  5. Step 5: Solve for x
    x = 2,460,223,160.57/55,809.03
  6. Step 6: Final answer
    x = 44,082.88

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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.