Home / 92,990.56-139,407.42-40,360.36

Finding the Fourth Proportional to 92,990.56, 139,407.42 and 40,360.36

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Solution

The fourth proportional to 92,990.56, 139,407.42 and 40,360.36 is: 60,506.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,990.56 : 139,407.42 = 40,360.36 : x
  2. Step 2: Convert to fraction form
    92,990.56/139,407.42 = 40,360.36/x
  3. Step 3: Cross multiply
    92,990.56x = 139,407.42 × 40,360.36
  4. Step 4: Simplify right side
    92,990.56x = 5,626,533,657.87
  5. Step 5: Solve for x
    x = 5,626,533,657.87/92,990.56
  6. Step 6: Final answer
    x = 60,506.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.