Home / 72,502.23-100,047.90-40,238.58

Finding the Fourth Proportional to 72,502.23, 100,047.90 and 40,238.58

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Solution

The fourth proportional to 72,502.23, 100,047.90 and 40,238.58 is: 55,526.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,502.23 : 100,047.90 = 40,238.58 : x
  2. Step 2: Convert to fraction form
    72,502.23/100,047.90 = 40,238.58/x
  3. Step 3: Cross multiply
    72,502.23x = 100,047.90 × 40,238.58
  4. Step 4: Simplify right side
    72,502.23x = 4,025,785,427.98
  5. Step 5: Solve for x
    x = 4,025,785,427.98/72,502.23
  6. Step 6: Final answer
    x = 55,526.37

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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.