Home / 55,266.13-76,264.55-31,389.67

Finding the Fourth Proportional to 55,266.13, 76,264.55 and 31,389.67

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Solution

The fourth proportional to 55,266.13, 76,264.55 and 31,389.67 is: 43,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,266.13 : 76,264.55 = 31,389.67 : x
  2. Step 2: Convert to fraction form
    55,266.13/76,264.55 = 31,389.67/x
  3. Step 3: Cross multiply
    55,266.13x = 76,264.55 × 31,389.67
  4. Step 4: Simplify right side
    55,266.13x = 2,393,918,900.25
  5. Step 5: Solve for x
    x = 2,393,918,900.25/55,266.13
  6. Step 6: Final answer
    x = 43,316.20

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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.