Home / 61,663.08-85,131.66-40,479.48

Finding the Fourth Proportional to 61,663.08, 85,131.66 and 40,479.48

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Solution

The fourth proportional to 61,663.08, 85,131.66 and 40,479.48 is: 55,885.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,663.08 : 85,131.66 = 40,479.48 : x
  2. Step 2: Convert to fraction form
    61,663.08/85,131.66 = 40,479.48/x
  3. Step 3: Cross multiply
    61,663.08x = 85,131.66 × 40,479.48
  4. Step 4: Simplify right side
    61,663.08x = 3,446,085,328.34
  5. Step 5: Solve for x
    x = 3,446,085,328.34/61,663.08
  6. Step 6: Final answer
    x = 55,885.72

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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.