Home / 42,723.80-64,085.72-11,561.48

Finding the Fourth Proportional to 42,723.80, 64,085.72 and 11,561.48

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Solution

The fourth proportional to 42,723.80, 64,085.72 and 11,561.48 is: 17,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,723.80 : 64,085.72 = 11,561.48 : x
  2. Step 2: Convert to fraction form
    42,723.80/64,085.72 = 11,561.48/x
  3. Step 3: Cross multiply
    42,723.80x = 64,085.72 × 11,561.48
  4. Step 4: Simplify right side
    42,723.80x = 740,925,770.07
  5. Step 5: Solve for x
    x = 740,925,770.07/42,723.80
  6. Step 6: Final answer
    x = 17,342.23

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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.