Home / 89,681.48-134,521-30,558.36

Finding the Fourth Proportional to 89,681.48, 134,521 and 30,558.36

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Solution

The fourth proportional to 89,681.48, 134,521 and 30,558.36 is: 45,837.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,681.48 : 134,521 = 30,558.36 : x
  2. Step 2: Convert to fraction form
    89,681.48/134,521 = 30,558.36/x
  3. Step 3: Cross multiply
    89,681.48x = 134,521 × 30,558.36
  4. Step 4: Simplify right side
    89,681.48x = 4,110,741,145.56
  5. Step 5: Solve for x
    x = 4,110,741,145.56/89,681.48
  6. Step 6: Final answer
    x = 45,837.12

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1.5x scale

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.