Home / 61,398.01-84,740.86-38,438.51

Finding the Fourth Proportional to 61,398.01, 84,740.86 and 38,438.51

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Solution

The fourth proportional to 61,398.01, 84,740.86 and 38,438.51 is: 53,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.01 : 84,740.86 = 38,438.51 : x
  2. Step 2: Convert to fraction form
    61,398.01/84,740.86 = 38,438.51/x
  3. Step 3: Cross multiply
    61,398.01x = 84,740.86 × 38,438.51
  4. Step 4: Simplify right side
    61,398.01x = 3,257,311,874.72
  5. Step 5: Solve for x
    x = 3,257,311,874.72/61,398.01
  6. Step 6: Final answer
    x = 53,052.40

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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.