Home / 48,039.09-66,240.02-31,020.99

Finding the Fourth Proportional to 48,039.09, 66,240.02 and 31,020.99

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Solution

The fourth proportional to 48,039.09, 66,240.02 and 31,020.99 is: 42,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,039.09 : 66,240.02 = 31,020.99 : x
  2. Step 2: Convert to fraction form
    48,039.09/66,240.02 = 31,020.99/x
  3. Step 3: Cross multiply
    48,039.09x = 66,240.02 × 31,020.99
  4. Step 4: Simplify right side
    48,039.09x = 2,054,830,998.02
  5. Step 5: Solve for x
    x = 2,054,830,998.02/48,039.09
  6. Step 6: Final answer
    x = 42,774.14

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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.