Home / 90,389.04-135,582.87-27,208.86

Finding the Fourth Proportional to 90,389.04, 135,582.87 and 27,208.86

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Solution

The fourth proportional to 90,389.04, 135,582.87 and 27,208.86 is: 40,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,389.04 : 135,582.87 = 27,208.86 : x
  2. Step 2: Convert to fraction form
    90,389.04/135,582.87 = 27,208.86/x
  3. Step 3: Cross multiply
    90,389.04x = 135,582.87 × 27,208.86
  4. Step 4: Simplify right side
    90,389.04x = 3,689,055,328.23
  5. Step 5: Solve for x
    x = 3,689,055,328.23/90,389.04
  6. Step 6: Final answer
    x = 40,813.08

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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.