Home / 90,744.62-136,070.06-40,782.02

Finding the Fourth Proportional to 90,744.62, 136,070.06 and 40,782.02

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Solution

The fourth proportional to 90,744.62, 136,070.06 and 40,782.02 is: 61,151.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,744.62 : 136,070.06 = 40,782.02 : x
  2. Step 2: Convert to fraction form
    90,744.62/136,070.06 = 40,782.02/x
  3. Step 3: Cross multiply
    90,744.62x = 136,070.06 × 40,782.02
  4. Step 4: Simplify right side
    90,744.62x = 5,549,211,908.32
  5. Step 5: Solve for x
    x = 5,549,211,908.32/90,744.62
  6. Step 6: Final answer
    x = 61,151.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.