Home / 64,850.42-89,478.35-39,356.22

Finding the Fourth Proportional to 64,850.42, 89,478.35 and 39,356.22

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Solution

The fourth proportional to 64,850.42, 89,478.35 and 39,356.22 is: 54,302.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,850.42 : 89,478.35 = 39,356.22 : x
  2. Step 2: Convert to fraction form
    64,850.42/89,478.35 = 39,356.22/x
  3. Step 3: Cross multiply
    64,850.42x = 89,478.35 × 39,356.22
  4. Step 4: Simplify right side
    64,850.42x = 3,521,529,627.84
  5. Step 5: Solve for x
    x = 3,521,529,627.84/64,850.42
  6. Step 6: Final answer
    x = 54,302.34

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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.