Home / 75,370.42-103,981.57-45,157.01

Finding the Fourth Proportional to 75,370.42, 103,981.57 and 45,157.01

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Solution

The fourth proportional to 75,370.42, 103,981.57 and 45,157.01 is: 62,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,370.42 : 103,981.57 = 45,157.01 : x
  2. Step 2: Convert to fraction form
    75,370.42/103,981.57 = 45,157.01/x
  3. Step 3: Cross multiply
    75,370.42x = 103,981.57 × 45,157.01
  4. Step 4: Simplify right side
    75,370.42x = 4,695,496,796.31
  5. Step 5: Solve for x
    x = 4,695,496,796.31/75,370.42
  6. Step 6: Final answer
    x = 62,298.93

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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.