Home / 65,007.90-89,717.22-39,508.70

Finding the Fourth Proportional to 65,007.90, 89,717.22 and 39,508.70

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Solution

The fourth proportional to 65,007.90, 89,717.22 and 39,508.70 is: 54,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,007.90 : 89,717.22 = 39,508.70 : x
  2. Step 2: Convert to fraction form
    65,007.90/89,717.22 = 39,508.70/x
  3. Step 3: Cross multiply
    65,007.90x = 89,717.22 × 39,508.70
  4. Step 4: Simplify right side
    65,007.90x = 3,544,610,281.23
  5. Step 5: Solve for x
    x = 3,544,610,281.23/65,007.90
  6. Step 6: Final answer
    x = 54,525.84

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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.