Home / 42,767.68-64,136.92-21,699.60

Finding the Fourth Proportional to 42,767.68, 64,136.92 and 21,699.60

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Solution

The fourth proportional to 42,767.68, 64,136.92 and 21,699.60 is: 32,541.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,767.68 : 64,136.92 = 21,699.60 : x
  2. Step 2: Convert to fraction form
    42,767.68/64,136.92 = 21,699.60/x
  3. Step 3: Cross multiply
    42,767.68x = 64,136.92 × 21,699.60
  4. Step 4: Simplify right side
    42,767.68x = 1,391,745,509.23
  5. Step 5: Solve for x
    x = 1,391,745,509.23/42,767.68
  6. Step 6: Final answer
    x = 32,541.99

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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.