Home / 89,054.02-122,905.92-51,328.54

Finding the Fourth Proportional to 89,054.02, 122,905.92 and 51,328.54

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Solution

The fourth proportional to 89,054.02, 122,905.92 and 51,328.54 is: 70,839.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,054.02 : 122,905.92 = 51,328.54 : x
  2. Step 2: Convert to fraction form
    89,054.02/122,905.92 = 51,328.54/x
  3. Step 3: Cross multiply
    89,054.02x = 122,905.92 × 51,328.54
  4. Step 4: Simplify right side
    89,054.02x = 6,308,581,430.96
  5. Step 5: Solve for x
    x = 6,308,581,430.96/89,054.02
  6. Step 6: Final answer
    x = 70,839.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.