Home / 74,303.89-111,370-34,239.10

Finding the Fourth Proportional to 74,303.89, 111,370 and 34,239.10

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Solution

The fourth proportional to 74,303.89, 111,370 and 34,239.10 is: 51,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,303.89 : 111,370 = 34,239.10 : x
  2. Step 2: Convert to fraction form
    74,303.89/111,370 = 34,239.10/x
  3. Step 3: Cross multiply
    74,303.89x = 111,370 × 34,239.10
  4. Step 4: Simplify right side
    74,303.89x = 3,813,208,567
  5. Step 5: Solve for x
    x = 3,813,208,567/74,303.89
  6. Step 6: Final answer
    x = 51,319.10

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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.