Home / 53,011.36-79,507.26-21,419.68

Finding the Fourth Proportional to 53,011.36, 79,507.26 and 21,419.68

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Solution

The fourth proportional to 53,011.36, 79,507.26 and 21,419.68 is: 32,125.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,011.36 : 79,507.26 = 21,419.68 : x
  2. Step 2: Convert to fraction form
    53,011.36/79,507.26 = 21,419.68/x
  3. Step 3: Cross multiply
    53,011.36x = 79,507.26 × 21,419.68
  4. Step 4: Simplify right side
    53,011.36x = 1,703,020,066.88
  5. Step 5: Solve for x
    x = 1,703,020,066.88/53,011.36
  6. Step 6: Final answer
    x = 32,125.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.