Home / 85,085.61-117,416.13-47,359.05

Finding the Fourth Proportional to 85,085.61, 117,416.13 and 47,359.05

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Solution

The fourth proportional to 85,085.61, 117,416.13 and 47,359.05 is: 65,354.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,085.61 : 117,416.13 = 47,359.05 : x
  2. Step 2: Convert to fraction form
    85,085.61/117,416.13 = 47,359.05/x
  3. Step 3: Cross multiply
    85,085.61x = 117,416.13 × 47,359.05
  4. Step 4: Simplify right side
    85,085.61x = 5,560,716,371.48
  5. Step 5: Solve for x
    x = 5,560,716,371.48/85,085.61
  6. Step 6: Final answer
    x = 65,354.37

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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.