Home / 88,018.68-121,331.40-53,964.12

Finding the Fourth Proportional to 88,018.68, 121,331.40 and 53,964.12

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Solution

The fourth proportional to 88,018.68, 121,331.40 and 53,964.12 is: 74,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,018.68 : 121,331.40 = 53,964.12 : x
  2. Step 2: Convert to fraction form
    88,018.68/121,331.40 = 53,964.12/x
  3. Step 3: Cross multiply
    88,018.68x = 121,331.40 × 53,964.12
  4. Step 4: Simplify right side
    88,018.68x = 6,547,542,229.37
  5. Step 5: Solve for x
    x = 6,547,542,229.37/88,018.68
  6. Step 6: Final answer
    x = 74,388.10

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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.