Home / 66,340.95-91,548.39-39,477.30

Finding the Fourth Proportional to 66,340.95, 91,548.39 and 39,477.30

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Solution

The fourth proportional to 66,340.95, 91,548.39 and 39,477.30 is: 54,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,340.95 : 91,548.39 = 39,477.30 : x
  2. Step 2: Convert to fraction form
    66,340.95/91,548.39 = 39,477.30/x
  3. Step 3: Cross multiply
    66,340.95x = 91,548.39 × 39,477.30
  4. Step 4: Simplify right side
    66,340.95x = 3,614,083,256.55
  5. Step 5: Solve for x
    x = 3,614,083,256.55/66,340.95
  6. Step 6: Final answer
    x = 54,477.41

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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.