Home / 89,030.88-122,889.12-51,331.68

Finding the Fourth Proportional to 89,030.88, 122,889.12 and 51,331.68

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Solution

The fourth proportional to 89,030.88, 122,889.12 and 51,331.68 is: 70,853.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,030.88 : 122,889.12 = 51,331.68 : x
  2. Step 2: Convert to fraction form
    89,030.88/122,889.12 = 51,331.68/x
  3. Step 3: Cross multiply
    89,030.88x = 122,889.12 × 51,331.68
  4. Step 4: Simplify right side
    89,030.88x = 6,308,104,983.32
  5. Step 5: Solve for x
    x = 6,308,104,983.32/89,030.88
  6. Step 6: Final answer
    x = 70,853.00

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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.