Home / 88,331.08-121,901.16-50,605.42

Finding the Fourth Proportional to 88,331.08, 121,901.16 and 50,605.42

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Solution

The fourth proportional to 88,331.08, 121,901.16 and 50,605.42 is: 69,837.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,331.08 : 121,901.16 = 50,605.42 : x
  2. Step 2: Convert to fraction form
    88,331.08/121,901.16 = 50,605.42/x
  3. Step 3: Cross multiply
    88,331.08x = 121,901.16 × 50,605.42
  4. Step 4: Simplify right side
    88,331.08x = 6,168,859,400.29
  5. Step 5: Solve for x
    x = 6,168,859,400.29/88,331.08
  6. Step 6: Final answer
    x = 69,837.93

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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.