Home / 74,180.19-111,288.51-21,590.13

Finding the Fourth Proportional to 74,180.19, 111,288.51 and 21,590.13

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Solution

The fourth proportional to 74,180.19, 111,288.51 and 21,590.13 is: 32,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,180.19 : 111,288.51 = 21,590.13 : x
  2. Step 2: Convert to fraction form
    74,180.19/111,288.51 = 21,590.13/x
  3. Step 3: Cross multiply
    74,180.19x = 111,288.51 × 21,590.13
  4. Step 4: Simplify right side
    74,180.19x = 2,402,733,398.41
  5. Step 5: Solve for x
    x = 2,402,733,398.41/74,180.19
  6. Step 6: Final answer
    x = 32,390.50

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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.