Home / 72,784.08-100,441.85-40,953.02

Finding the Fourth Proportional to 72,784.08, 100,441.85 and 40,953.02

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Solution

The fourth proportional to 72,784.08, 100,441.85 and 40,953.02 is: 56,515.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,784.08 : 100,441.85 = 40,953.02 : x
  2. Step 2: Convert to fraction form
    72,784.08/100,441.85 = 40,953.02/x
  3. Step 3: Cross multiply
    72,784.08x = 100,441.85 × 40,953.02
  4. Step 4: Simplify right side
    72,784.08x = 4,113,396,384.91
  5. Step 5: Solve for x
    x = 4,113,396,384.91/72,784.08
  6. Step 6: Final answer
    x = 56,515.06

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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.