Home / 62,979.66-86,989.95-45,724.50

Finding the Fourth Proportional to 62,979.66, 86,989.95 and 45,724.50

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Solution

The fourth proportional to 62,979.66, 86,989.95 and 45,724.50 is: 63,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,979.66 : 86,989.95 = 45,724.50 : x
  2. Step 2: Convert to fraction form
    62,979.66/86,989.95 = 45,724.50/x
  3. Step 3: Cross multiply
    62,979.66x = 86,989.95 × 45,724.50
  4. Step 4: Simplify right side
    62,979.66x = 3,977,571,968.78
  5. Step 5: Solve for x
    x = 3,977,571,968.78/62,979.66
  6. Step 6: Final answer
    x = 63,156.45

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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.