Home / 61,110.40-84,336.24-39,946.72

Finding the Fourth Proportional to 61,110.40, 84,336.24 and 39,946.72

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Solution

The fourth proportional to 61,110.40, 84,336.24 and 39,946.72 is: 55,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,110.40 : 84,336.24 = 39,946.72 : x
  2. Step 2: Convert to fraction form
    61,110.40/84,336.24 = 39,946.72/x
  3. Step 3: Cross multiply
    61,110.40x = 84,336.24 × 39,946.72
  4. Step 4: Simplify right side
    61,110.40x = 3,368,956,165.13
  5. Step 5: Solve for x
    x = 3,368,956,165.13/61,110.40
  6. Step 6: Final answer
    x = 55,129.02

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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.