Home / 61,152.21-84,354.21-38,455.20

Finding the Fourth Proportional to 61,152.21, 84,354.21 and 38,455.20

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Solution

The fourth proportional to 61,152.21, 84,354.21 and 38,455.20 is: 53,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,152.21 : 84,354.21 = 38,455.20 : x
  2. Step 2: Convert to fraction form
    61,152.21/84,354.21 = 38,455.20/x
  3. Step 3: Cross multiply
    61,152.21x = 84,354.21 × 38,455.20
  4. Step 4: Simplify right side
    61,152.21x = 3,243,858,016.39
  5. Step 5: Solve for x
    x = 3,243,858,016.39/61,152.21
  6. Step 6: Final answer
    x = 53,045.64

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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.