Home / 55,281.21-76,287.22-31,082.19

Finding the Fourth Proportional to 55,281.21, 76,287.22 and 31,082.19

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Solution

The fourth proportional to 55,281.21, 76,287.22 and 31,082.19 is: 42,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281.21 : 76,287.22 = 31,082.19 : x
  2. Step 2: Convert to fraction form
    55,281.21/76,287.22 = 31,082.19/x
  3. Step 3: Cross multiply
    55,281.21x = 76,287.22 × 31,082.19
  4. Step 4: Simplify right side
    55,281.21x = 2,371,174,269.16
  5. Step 5: Solve for x
    x = 2,371,174,269.16/55,281.21
  6. Step 6: Final answer
    x = 42,892.95

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1.5x scale

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.