Home / 64,774.49-89,432.91-40,585.46

Finding the Fourth Proportional to 64,774.49, 89,432.91 and 40,585.46

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Solution

The fourth proportional to 64,774.49, 89,432.91 and 40,585.46 is: 56,035.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,774.49 : 89,432.91 = 40,585.46 : x
  2. Step 2: Convert to fraction form
    64,774.49/89,432.91 = 40,585.46/x
  3. Step 3: Cross multiply
    64,774.49x = 89,432.91 × 40,585.46
  4. Step 4: Simplify right side
    64,774.49x = 3,629,675,344.32
  5. Step 5: Solve for x
    x = 3,629,675,344.32/64,774.49
  6. Step 6: Final answer
    x = 56,035.57

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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.