Home / 98,441.47-135,849.79-56,000

Finding the Fourth Proportional to 98,441.47, 135,849.79 and 56,000

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Solution

The fourth proportional to 98,441.47, 135,849.79 and 56,000 is: 77,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,441.47 : 135,849.79 = 56,000 : x
  2. Step 2: Convert to fraction form
    98,441.47/135,849.79 = 56,000/x
  3. Step 3: Cross multiply
    98,441.47x = 135,849.79 × 56,000
  4. Step 4: Simplify right side
    98,441.47x = 7,607,587,960
  5. Step 5: Solve for x
    x = 7,607,587,960/98,441.47
  6. Step 6: Final answer
    x = 77,280.32

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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.