Home / 74,390.17-111,570.67-21,785.53

Finding the Fourth Proportional to 74,390.17, 111,570.67 and 21,785.53

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Solution

The fourth proportional to 74,390.17, 111,570.67 and 21,785.53 is: 32,674.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,390.17 : 111,570.67 = 21,785.53 : x
  2. Step 2: Convert to fraction form
    74,390.17/111,570.67 = 21,785.53/x
  3. Step 3: Cross multiply
    74,390.17x = 111,570.67 × 21,785.53
  4. Step 4: Simplify right side
    74,390.17x = 2,430,626,178.41
  5. Step 5: Solve for x
    x = 2,430,626,178.41/74,390.17
  6. Step 6: Final answer
    x = 32,674.02

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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.