Home / 72,736.56-100,384.38-40,904.64

Finding the Fourth Proportional to 72,736.56, 100,384.38 and 40,904.64

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Solution

The fourth proportional to 72,736.56, 100,384.38 and 40,904.64 is: 56,452.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,736.56 : 100,384.38 = 40,904.64 : x
  2. Step 2: Convert to fraction form
    72,736.56/100,384.38 = 40,904.64/x
  3. Step 3: Cross multiply
    72,736.56x = 100,384.38 × 40,904.64
  4. Step 4: Simplify right side
    72,736.56x = 4,106,186,925.52
  5. Step 5: Solve for x
    x = 4,106,186,925.52/72,736.56
  6. Step 6: Final answer
    x = 56,452.86

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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.