Home / 72,213.99-99,669.08-48,382.21

Finding the Fourth Proportional to 72,213.99, 99,669.08 and 48,382.21

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Solution

The fourth proportional to 72,213.99, 99,669.08 and 48,382.21 is: 66,776.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,213.99 : 99,669.08 = 48,382.21 : x
  2. Step 2: Convert to fraction form
    72,213.99/99,669.08 = 48,382.21/x
  3. Step 3: Cross multiply
    72,213.99x = 99,669.08 × 48,382.21
  4. Step 4: Simplify right side
    72,213.99x = 4,822,210,359.07
  5. Step 5: Solve for x
    x = 4,822,210,359.07/72,213.99
  6. Step 6: Final answer
    x = 66,776.68

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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.