Home / 72,386.22-99,894.96-40,554.44

Finding the Fourth Proportional to 72,386.22, 99,894.96 and 40,554.44

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Solution

The fourth proportional to 72,386.22, 99,894.96 and 40,554.44 is: 55,966.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,386.22 : 99,894.96 = 40,554.44 : x
  2. Step 2: Convert to fraction form
    72,386.22/99,894.96 = 40,554.44/x
  3. Step 3: Cross multiply
    72,386.22x = 99,894.96 × 40,554.44
  4. Step 4: Simplify right side
    72,386.22x = 4,051,184,161.62
  5. Step 5: Solve for x
    x = 4,051,184,161.62/72,386.22
  6. Step 6: Final answer
    x = 55,966.23

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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.