Home / 90,845.27-136,273.67-28,518.23

Finding the Fourth Proportional to 90,845.27, 136,273.67 and 28,518.23

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Solution

The fourth proportional to 90,845.27, 136,273.67 and 28,518.23 is: 42,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.27 : 136,273.67 = 28,518.23 : x
  2. Step 2: Convert to fraction form
    90,845.27/136,273.67 = 28,518.23/x
  3. Step 3: Cross multiply
    90,845.27x = 136,273.67 × 28,518.23
  4. Step 4: Simplify right side
    90,845.27x = 3,886,283,864.00
  5. Step 5: Solve for x
    x = 3,886,283,864.00/90,845.27
  6. Step 6: Final answer
    x = 42,779.15

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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.