Home / 85,389.60-117,832.76-47,666.24

Finding the Fourth Proportional to 85,389.60, 117,832.76 and 47,666.24

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Solution

The fourth proportional to 85,389.60, 117,832.76 and 47,666.24 is: 65,776.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,389.60 : 117,832.76 = 47,666.24 : x
  2. Step 2: Convert to fraction form
    85,389.60/117,832.76 = 47,666.24/x
  3. Step 3: Cross multiply
    85,389.60x = 117,832.76 × 47,666.24
  4. Step 4: Simplify right side
    85,389.60x = 5,616,644,618.02
  5. Step 5: Solve for x
    x = 5,616,644,618.02/85,389.60
  6. Step 6: Final answer
    x = 65,776.68

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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.