Home / 82,590.90-123,886.35-30,002.10

Finding the Fourth Proportional to 82,590.90, 123,886.35 and 30,002.10

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Solution

The fourth proportional to 82,590.90, 123,886.35 and 30,002.10 is: 45,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,590.90 : 123,886.35 = 30,002.10 : x
  2. Step 2: Convert to fraction form
    82,590.90/123,886.35 = 30,002.10/x
  3. Step 3: Cross multiply
    82,590.90x = 123,886.35 × 30,002.10
  4. Step 4: Simplify right side
    82,590.90x = 3,716,850,661.34
  5. Step 5: Solve for x
    x = 3,716,850,661.34/82,590.90
  6. Step 6: Final answer
    x = 45,003.15

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1.5x scale

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.