Home / 56,428.61-77,874.23-30,936.02

Finding the Fourth Proportional to 56,428.61, 77,874.23 and 30,936.02

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Solution

The fourth proportional to 56,428.61, 77,874.23 and 30,936.02 is: 42,693.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,428.61 : 77,874.23 = 30,936.02 : x
  2. Step 2: Convert to fraction form
    56,428.61/77,874.23 = 30,936.02/x
  3. Step 3: Cross multiply
    56,428.61x = 77,874.23 × 30,936.02
  4. Step 4: Simplify right side
    56,428.61x = 2,409,118,192.71
  5. Step 5: Solve for x
    x = 2,409,118,192.71/56,428.61
  6. Step 6: Final answer
    x = 42,693.21

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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.