Home / 74,430.30-111,451.05-70,931.10

Finding the Fourth Proportional to 74,430.30, 111,451.05 and 70,931.10

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Solution

The fourth proportional to 74,430.30, 111,451.05 and 70,931.10 is: 106,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,430.30 : 111,451.05 = 70,931.10 : x
  2. Step 2: Convert to fraction form
    74,430.30/111,451.05 = 70,931.10/x
  3. Step 3: Cross multiply
    74,430.30x = 111,451.05 × 70,931.10
  4. Step 4: Simplify right side
    74,430.30x = 7,905,345,572.66
  5. Step 5: Solve for x
    x = 7,905,345,572.66/74,430.30
  6. Step 6: Final answer
    x = 106,211.39

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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.