Home / 64,724.43-89,347.35-43,516

Finding the Fourth Proportional to 64,724.43, 89,347.35 and 43,516

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Solution

The fourth proportional to 64,724.43, 89,347.35 and 43,516 is: 60,070.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,724.43 : 89,347.35 = 43,516 : x
  2. Step 2: Convert to fraction form
    64,724.43/89,347.35 = 43,516/x
  3. Step 3: Cross multiply
    64,724.43x = 89,347.35 × 43,516
  4. Step 4: Simplify right side
    64,724.43x = 3,888,039,282.60
  5. Step 5: Solve for x
    x = 3,888,039,282.60/64,724.43
  6. Step 6: Final answer
    x = 60,070.66

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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.