Home / 72,504.32-100,069.62-47,310.08

Finding the Fourth Proportional to 72,504.32, 100,069.62 and 47,310.08

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Solution

The fourth proportional to 72,504.32, 100,069.62 and 47,310.08 is: 65,296.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,504.32 : 100,069.62 = 47,310.08 : x
  2. Step 2: Convert to fraction form
    72,504.32/100,069.62 = 47,310.08/x
  3. Step 3: Cross multiply
    72,504.32x = 100,069.62 × 47,310.08
  4. Step 4: Simplify right side
    72,504.32x = 4,734,301,727.77
  5. Step 5: Solve for x
    x = 4,734,301,727.77/72,504.32
  6. Step 6: Final answer
    x = 65,296.82

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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.