Home / 72,058.19-99,436.14-40,229.10

Finding the Fourth Proportional to 72,058.19, 99,436.14 and 40,229.10

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Solution

The fourth proportional to 72,058.19, 99,436.14 and 40,229.10 is: 55,513.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,058.19 : 99,436.14 = 40,229.10 : x
  2. Step 2: Convert to fraction form
    72,058.19/99,436.14 = 40,229.10/x
  3. Step 3: Cross multiply
    72,058.19x = 99,436.14 × 40,229.10
  4. Step 4: Simplify right side
    72,058.19x = 4,000,226,419.67
  5. Step 5: Solve for x
    x = 4,000,226,419.67/72,058.19
  6. Step 6: Final answer
    x = 55,513.84

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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.