Home / 53,912.79-80,692.81-39,677.45

Finding the Fourth Proportional to 53,912.79, 80,692.81 and 39,677.45

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Solution

The fourth proportional to 53,912.79, 80,692.81 and 39,677.45 is: 59,386.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,912.79 : 80,692.81 = 39,677.45 : x
  2. Step 2: Convert to fraction form
    53,912.79/80,692.81 = 39,677.45/x
  3. Step 3: Cross multiply
    53,912.79x = 80,692.81 × 39,677.45
  4. Step 4: Simplify right side
    53,912.79x = 3,201,684,431.48
  5. Step 5: Solve for x
    x = 3,201,684,431.48/53,912.79
  6. Step 6: Final answer
    x = 59,386.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.