Home / 85,223.04-117,619.20-47,500.80

Finding the Fourth Proportional to 85,223.04, 117,619.20 and 47,500.80

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Solution

The fourth proportional to 85,223.04, 117,619.20 and 47,500.80 is: 65,557.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,223.04 : 117,619.20 = 47,500.80 : x
  2. Step 2: Convert to fraction form
    85,223.04/117,619.20 = 47,500.80/x
  3. Step 3: Cross multiply
    85,223.04x = 117,619.20 × 47,500.80
  4. Step 4: Simplify right side
    85,223.04x = 5,587,006,095.36
  5. Step 5: Solve for x
    x = 5,587,006,095.36/85,223.04
  6. Step 6: Final answer
    x = 65,557.46

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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.