Home / 43,571.60-64,864.66-43,312.40

Finding the Fourth Proportional to 43,571.60, 64,864.66 and 43,312.40

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Solution

The fourth proportional to 43,571.60, 64,864.66 and 43,312.40 is: 64,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,571.60 : 64,864.66 = 43,312.40 : x
  2. Step 2: Convert to fraction form
    43,571.60/64,864.66 = 43,312.40/x
  3. Step 3: Cross multiply
    43,571.60x = 64,864.66 × 43,312.40
  4. Step 4: Simplify right side
    43,571.60x = 2,809,444,099.78
  5. Step 5: Solve for x
    x = 2,809,444,099.78/43,571.60
  6. Step 6: Final answer
    x = 64,478.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.