Home / 60,128.22-82,971.29-40,707.63

Finding the Fourth Proportional to 60,128.22, 82,971.29 and 40,707.63

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Solution

The fourth proportional to 60,128.22, 82,971.29 and 40,707.63 is: 56,172.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,128.22 : 82,971.29 = 40,707.63 : x
  2. Step 2: Convert to fraction form
    60,128.22/82,971.29 = 40,707.63/x
  3. Step 3: Cross multiply
    60,128.22x = 82,971.29 × 40,707.63
  4. Step 4: Simplify right side
    60,128.22x = 3,377,564,364.57
  5. Step 5: Solve for x
    x = 3,377,564,364.57/60,128.22
  6. Step 6: Final answer
    x = 56,172.70

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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.