Home / 69,996.17-96,594.74-39,780.72

Finding the Fourth Proportional to 69,996.17, 96,594.74 and 39,780.72

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Solution

The fourth proportional to 69,996.17, 96,594.74 and 39,780.72 is: 54,897.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,996.17 : 96,594.74 = 39,780.72 : x
  2. Step 2: Convert to fraction form
    69,996.17/96,594.74 = 39,780.72/x
  3. Step 3: Cross multiply
    69,996.17x = 96,594.74 × 39,780.72
  4. Step 4: Simplify right side
    69,996.17x = 3,842,608,106.51
  5. Step 5: Solve for x
    x = 3,842,608,106.51/69,996.17
  6. Step 6: Final answer
    x = 54,897.41

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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.