Home / 89,608.32-134,377.92-30,430.08

Finding the Fourth Proportional to 89,608.32, 134,377.92 and 30,430.08

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Solution

The fourth proportional to 89,608.32, 134,377.92 and 30,430.08 is: 45,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,608.32 : 134,377.92 = 30,430.08 : x
  2. Step 2: Convert to fraction form
    89,608.32/134,377.92 = 30,430.08/x
  3. Step 3: Cross multiply
    89,608.32x = 134,377.92 × 30,430.08
  4. Step 4: Simplify right side
    89,608.32x = 4,089,130,855.83
  5. Step 5: Solve for x
    x = 4,089,130,855.83/89,608.32
  6. Step 6: Final answer
    x = 45,633.38

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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.