Home / 61,428.28-84,749.34-40,219.24

Finding the Fourth Proportional to 61,428.28, 84,749.34 and 40,219.24

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Solution

The fourth proportional to 61,428.28, 84,749.34 and 40,219.24 is: 55,488.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,428.28 : 84,749.34 = 40,219.24 : x
  2. Step 2: Convert to fraction form
    61,428.28/84,749.34 = 40,219.24/x
  3. Step 3: Cross multiply
    61,428.28x = 84,749.34 × 40,219.24
  4. Step 4: Simplify right side
    61,428.28x = 3,408,554,045.30
  5. Step 5: Solve for x
    x = 3,408,554,045.30/61,428.28
  6. Step 6: Final answer
    x = 55,488.35

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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.