Home / 61,412.80-84,742.12-38,743.24

Finding the Fourth Proportional to 61,412.80, 84,742.12 and 38,743.24

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Solution

The fourth proportional to 61,412.80, 84,742.12 and 38,743.24 is: 53,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,412.80 : 84,742.12 = 38,743.24 : x
  2. Step 2: Convert to fraction form
    61,412.80/84,742.12 = 38,743.24/x
  3. Step 3: Cross multiply
    61,412.80x = 84,742.12 × 38,743.24
  4. Step 4: Simplify right side
    61,412.80x = 3,283,184,293.27
  5. Step 5: Solve for x
    x = 3,283,184,293.27/61,412.80
  6. Step 6: Final answer
    x = 53,460.91

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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.