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Finding the Fourth Proportional to 72,697.44, 100,303.44 and 42,465.12

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Solution

The fourth proportional to 72,697.44, 100,303.44 and 42,465.12 is: 58,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,697.44 : 100,303.44 = 42,465.12 : x
  2. Step 2: Convert to fraction form
    72,697.44/100,303.44 = 42,465.12/x
  3. Step 3: Cross multiply
    72,697.44x = 100,303.44 × 42,465.12
  4. Step 4: Simplify right side
    72,697.44x = 4,259,397,616.01
  5. Step 5: Solve for x
    x = 4,259,397,616.01/72,697.44
  6. Step 6: Final answer
    x = 58,590.75

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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.