Home / 90,746.62-136,073.06-40,784.02

Finding the Fourth Proportional to 90,746.62, 136,073.06 and 40,784.02

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Solution

The fourth proportional to 90,746.62, 136,073.06 and 40,784.02 is: 61,154.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,746.62 : 136,073.06 = 40,784.02 : x
  2. Step 2: Convert to fraction form
    90,746.62/136,073.06 = 40,784.02/x
  3. Step 3: Cross multiply
    90,746.62x = 136,073.06 × 40,784.02
  4. Step 4: Simplify right side
    90,746.62x = 5,549,606,400.50
  5. Step 5: Solve for x
    x = 5,549,606,400.50/90,746.62
  6. Step 6: Final answer
    x = 61,154.97

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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.