Home / 64,507.23-89,019.36-36,212.72

Finding the Fourth Proportional to 64,507.23, 89,019.36 and 36,212.72

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Solution

The fourth proportional to 64,507.23, 89,019.36 and 36,212.72 is: 49,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,507.23 : 89,019.36 = 36,212.72 : x
  2. Step 2: Convert to fraction form
    64,507.23/89,019.36 = 36,212.72/x
  3. Step 3: Cross multiply
    64,507.23x = 89,019.36 × 36,212.72
  4. Step 4: Simplify right side
    64,507.23x = 3,223,632,713.16
  5. Step 5: Solve for x
    x = 3,223,632,713.16/64,507.23
  6. Step 6: Final answer
    x = 49,973.20

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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.