Home / 90,842.02-136,268.79-28,514.98

Finding the Fourth Proportional to 90,842.02, 136,268.79 and 28,514.98

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Solution

The fourth proportional to 90,842.02, 136,268.79 and 28,514.98 is: 42,774.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842.02 : 136,268.79 = 28,514.98 : x
  2. Step 2: Convert to fraction form
    90,842.02/136,268.79 = 28,514.98/x
  3. Step 3: Cross multiply
    90,842.02x = 136,268.79 × 28,514.98
  4. Step 4: Simplify right side
    90,842.02x = 3,885,701,821.47
  5. Step 5: Solve for x
    x = 3,885,701,821.47/90,842.02
  6. Step 6: Final answer
    x = 42,774.28

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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.