Home / 55,579.02-76,699.08-30,428.52

Finding the Fourth Proportional to 55,579.02, 76,699.08 and 30,428.52

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Solution

The fourth proportional to 55,579.02, 76,699.08 and 30,428.52 is: 41,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,579.02 : 76,699.08 = 30,428.52 : x
  2. Step 2: Convert to fraction form
    55,579.02/76,699.08 = 30,428.52/x
  3. Step 3: Cross multiply
    55,579.02x = 76,699.08 × 30,428.52
  4. Step 4: Simplify right side
    55,579.02x = 2,333,839,489.76
  5. Step 5: Solve for x
    x = 2,333,839,489.76/55,579.02
  6. Step 6: Final answer
    x = 41,991.38

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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.