Home / 64,889.02-89,540.62-39,409.33

Finding the Fourth Proportional to 64,889.02, 89,540.62 and 39,409.33

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Solution

The fourth proportional to 64,889.02, 89,540.62 and 39,409.33 is: 54,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,889.02 : 89,540.62 = 39,409.33 : x
  2. Step 2: Convert to fraction form
    64,889.02/89,540.62 = 39,409.33/x
  3. Step 3: Cross multiply
    64,889.02x = 89,540.62 × 39,409.33
  4. Step 4: Simplify right side
    64,889.02x = 3,528,735,841.98
  5. Step 5: Solve for x
    x = 3,528,735,841.98/64,889.02
  6. Step 6: Final answer
    x = 54,381.09

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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.