Home / 55,572.81-76,690.40-30,079.17

Finding the Fourth Proportional to 55,572.81, 76,690.40 and 30,079.17

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Solution

The fourth proportional to 55,572.81, 76,690.40 and 30,079.17 is: 41,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,572.81 : 76,690.40 = 30,079.17 : x
  2. Step 2: Convert to fraction form
    55,572.81/76,690.40 = 30,079.17/x
  3. Step 3: Cross multiply
    55,572.81x = 76,690.40 × 30,079.17
  4. Step 4: Simplify right side
    55,572.81x = 2,306,783,644.26
  5. Step 5: Solve for x
    x = 2,306,783,644.26/55,572.81
  6. Step 6: Final answer
    x = 41,509.21

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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.