Home / 63,554.19-87,668.33-39,639.35

Finding the Fourth Proportional to 63,554.19, 87,668.33 and 39,639.35

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Solution

The fourth proportional to 63,554.19, 87,668.33 and 39,639.35 is: 54,679.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,554.19 : 87,668.33 = 39,639.35 : x
  2. Step 2: Convert to fraction form
    63,554.19/87,668.33 = 39,639.35/x
  3. Step 3: Cross multiply
    63,554.19x = 87,668.33 × 39,639.35
  4. Step 4: Simplify right side
    63,554.19x = 3,475,114,980.25
  5. Step 5: Solve for x
    x = 3,475,114,980.25/63,554.19
  6. Step 6: Final answer
    x = 54,679.56

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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.