Home / 61,457.20-84,765.68-42,343.36

Finding the Fourth Proportional to 61,457.20, 84,765.68 and 42,343.36

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Solution

The fourth proportional to 61,457.20, 84,765.68 and 42,343.36 is: 58,402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,457.20 : 84,765.68 = 42,343.36 : x
  2. Step 2: Convert to fraction form
    61,457.20/84,765.68 = 42,343.36/x
  3. Step 3: Cross multiply
    61,457.20x = 84,765.68 × 42,343.36
  4. Step 4: Simplify right side
    61,457.20x = 3,589,263,703.88
  5. Step 5: Solve for x
    x = 3,589,263,703.88/61,457.20
  6. Step 6: Final answer
    x = 58,402.66

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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.