Home / 40,128.80-60,157.36-19,055.84

Finding the Fourth Proportional to 40,128.80, 60,157.36 and 19,055.84

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Solution

The fourth proportional to 40,128.80, 60,157.36 and 19,055.84 is: 28,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,128.80 : 60,157.36 = 19,055.84 : x
  2. Step 2: Convert to fraction form
    40,128.80/60,157.36 = 19,055.84/x
  3. Step 3: Cross multiply
    40,128.80x = 60,157.36 × 19,055.84
  4. Step 4: Simplify right side
    40,128.80x = 1,146,349,026.98
  5. Step 5: Solve for x
    x = 1,146,349,026.98/40,128.80
  6. Step 6: Final answer
    x = 28,566.74

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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.