Home / 57,802.20-86,681.70-40,219.80

Finding the Fourth Proportional to 57,802.20, 86,681.70 and 40,219.80

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Solution

The fourth proportional to 57,802.20, 86,681.70 and 40,219.80 is: 60,314.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,802.20 : 86,681.70 = 40,219.80 : x
  2. Step 2: Convert to fraction form
    57,802.20/86,681.70 = 40,219.80/x
  3. Step 3: Cross multiply
    57,802.20x = 86,681.70 × 40,219.80
  4. Step 4: Simplify right side
    57,802.20x = 3,486,320,637.66
  5. Step 5: Solve for x
    x = 3,486,320,637.66/57,802.20
  6. Step 6: Final answer
    x = 60,314.67

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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.