Home / 89,275.03-133,912.98-30,111.21

Finding the Fourth Proportional to 89,275.03, 133,912.98 and 30,111.21

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Solution

The fourth proportional to 89,275.03, 133,912.98 and 30,111.21 is: 45,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,275.03 : 133,912.98 = 30,111.21 : x
  2. Step 2: Convert to fraction form
    89,275.03/133,912.98 = 30,111.21/x
  3. Step 3: Cross multiply
    89,275.03x = 133,912.98 × 30,111.21
  4. Step 4: Simplify right side
    89,275.03x = 4,032,281,862.51
  5. Step 5: Solve for x
    x = 4,032,281,862.51/89,275.03
  6. Step 6: Final answer
    x = 45,166.96

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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.