Home / 72,973.19-100,703.18-39,439.19

Finding the Fourth Proportional to 72,973.19, 100,703.18 and 39,439.19

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Solution

The fourth proportional to 72,973.19, 100,703.18 and 39,439.19 is: 54,426.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,973.19 : 100,703.18 = 39,439.19 : x
  2. Step 2: Convert to fraction form
    72,973.19/100,703.18 = 39,439.19/x
  3. Step 3: Cross multiply
    72,973.19x = 100,703.18 × 39,439.19
  4. Step 4: Simplify right side
    72,973.19x = 3,971,651,849.62
  5. Step 5: Solve for x
    x = 3,971,651,849.62/72,973.19
  6. Step 6: Final answer
    x = 54,426.18

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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.