Home / 42,777.12-64,165.80-25,222.80

Finding the Fourth Proportional to 42,777.12, 64,165.80 and 25,222.80

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Solution

The fourth proportional to 42,777.12, 64,165.80 and 25,222.80 is: 37,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,777.12 : 64,165.80 = 25,222.80 : x
  2. Step 2: Convert to fraction form
    42,777.12/64,165.80 = 25,222.80/x
  3. Step 3: Cross multiply
    42,777.12x = 64,165.80 × 25,222.80
  4. Step 4: Simplify right side
    42,777.12x = 1,618,441,140.24
  5. Step 5: Solve for x
    x = 1,618,441,140.24/42,777.12
  6. Step 6: Final answer
    x = 37,834.27

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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.