Home / 55,983.50-77,258.08-30,491.06

Finding the Fourth Proportional to 55,983.50, 77,258.08 and 30,491.06

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Solution

The fourth proportional to 55,983.50, 77,258.08 and 30,491.06 is: 42,078.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,983.50 : 77,258.08 = 30,491.06 : x
  2. Step 2: Convert to fraction form
    55,983.50/77,258.08 = 30,491.06/x
  3. Step 3: Cross multiply
    55,983.50x = 77,258.08 × 30,491.06
  4. Step 4: Simplify right side
    55,983.50x = 2,355,680,752.76
  5. Step 5: Solve for x
    x = 2,355,680,752.76/55,983.50
  6. Step 6: Final answer
    x = 42,078.13

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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.