Home / 89,871.56-134,807.34-30,707.72

Finding the Fourth Proportional to 89,871.56, 134,807.34 and 30,707.72

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Solution

The fourth proportional to 89,871.56, 134,807.34 and 30,707.72 is: 46,061.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,871.56 : 134,807.34 = 30,707.72 : x
  2. Step 2: Convert to fraction form
    89,871.56/134,807.34 = 30,707.72/x
  3. Step 3: Cross multiply
    89,871.56x = 134,807.34 × 30,707.72
  4. Step 4: Simplify right side
    89,871.56x = 4,139,626,050.66
  5. Step 5: Solve for x
    x = 4,139,626,050.66/89,871.56
  6. Step 6: Final answer
    x = 46,061.58

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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.