Home / 55,421.40-76,454.13-32,749.42

Finding the Fourth Proportional to 55,421.40, 76,454.13 and 32,749.42

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Solution

The fourth proportional to 55,421.40, 76,454.13 and 32,749.42 is: 45,178.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.40 : 76,454.13 = 32,749.42 : x
  2. Step 2: Convert to fraction form
    55,421.40/76,454.13 = 32,749.42/x
  3. Step 3: Cross multiply
    55,421.40x = 76,454.13 × 32,749.42
  4. Step 4: Simplify right side
    55,421.40x = 2,503,828,386.86
  5. Step 5: Solve for x
    x = 2,503,828,386.86/55,421.40
  6. Step 6: Final answer
    x = 45,178.01

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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.