Home / 72,219.80-108,330.02-47,416.79

Finding the Fourth Proportional to 72,219.80, 108,330.02 and 47,416.79

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Solution

The fourth proportional to 72,219.80, 108,330.02 and 47,416.79 is: 71,125.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,219.80 : 108,330.02 = 47,416.79 : x
  2. Step 2: Convert to fraction form
    72,219.80/108,330.02 = 47,416.79/x
  3. Step 3: Cross multiply
    72,219.80x = 108,330.02 × 47,416.79
  4. Step 4: Simplify right side
    72,219.80x = 5,136,661,030.30
  5. Step 5: Solve for x
    x = 5,136,661,030.30/72,219.80
  6. Step 6: Final answer
    x = 71,125.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.