Home / 56,371.85-77,792.30-30,878.01

Finding the Fourth Proportional to 56,371.85, 77,792.30 and 30,878.01

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Solution

The fourth proportional to 56,371.85, 77,792.30 and 30,878.01 is: 42,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,371.85 : 77,792.30 = 30,878.01 : x
  2. Step 2: Convert to fraction form
    56,371.85/77,792.30 = 30,878.01/x
  3. Step 3: Cross multiply
    56,371.85x = 77,792.30 × 30,878.01
  4. Step 4: Simplify right side
    56,371.85x = 2,402,071,378.73
  5. Step 5: Solve for x
    x = 2,402,071,378.73/56,371.85
  6. Step 6: Final answer
    x = 42,611.19

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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.