Home / 72,383.16-99,899.32-40,554.22

Finding the Fourth Proportional to 72,383.16, 99,899.32 and 40,554.22

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Solution

The fourth proportional to 72,383.16, 99,899.32 and 40,554.22 is: 55,970.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,383.16 : 99,899.32 = 40,554.22 : x
  2. Step 2: Convert to fraction form
    72,383.16/99,899.32 = 40,554.22/x
  3. Step 3: Cross multiply
    72,383.16x = 99,899.32 × 40,554.22
  4. Step 4: Simplify right side
    72,383.16x = 4,051,339,001.13
  5. Step 5: Solve for x
    x = 4,051,339,001.13/72,383.16
  6. Step 6: Final answer
    x = 55,970.74

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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.