Home / 89,605.40-134,420.34-30,425.18

Finding the Fourth Proportional to 89,605.40, 134,420.34 and 30,425.18

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Solution

The fourth proportional to 89,605.40, 134,420.34 and 30,425.18 is: 45,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,605.40 : 134,420.34 = 30,425.18 : x
  2. Step 2: Convert to fraction form
    89,605.40/134,420.34 = 30,425.18/x
  3. Step 3: Cross multiply
    89,605.40x = 134,420.34 × 30,425.18
  4. Step 4: Simplify right side
    89,605.40x = 4,089,763,040.16
  5. Step 5: Solve for x
    x = 4,089,763,040.16/89,605.40
  6. Step 6: Final answer
    x = 45,641.93

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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.