Home / 89,324.44-134,012.10-72,840.40

Finding the Fourth Proportional to 89,324.44, 134,012.10 and 72,840.40

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Solution

The fourth proportional to 89,324.44, 134,012.10 and 72,840.40 is: 109,281.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,324.44 : 134,012.10 = 72,840.40 : x
  2. Step 2: Convert to fraction form
    89,324.44/134,012.10 = 72,840.40/x
  3. Step 3: Cross multiply
    89,324.44x = 134,012.10 × 72,840.40
  4. Step 4: Simplify right side
    89,324.44x = 9,761,494,968.84
  5. Step 5: Solve for x
    x = 9,761,494,968.84/89,324.44
  6. Step 6: Final answer
    x = 109,281.35

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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.