Home / 42,940.86-64,424.25-28,957.02

Finding the Fourth Proportional to 42,940.86, 64,424.25 and 28,957.02

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Solution

The fourth proportional to 42,940.86, 64,424.25 and 28,957.02 is: 43,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,940.86 : 64,424.25 = 28,957.02 : x
  2. Step 2: Convert to fraction form
    42,940.86/64,424.25 = 28,957.02/x
  3. Step 3: Cross multiply
    42,940.86x = 64,424.25 × 28,957.02
  4. Step 4: Simplify right side
    42,940.86x = 1,865,534,295.74
  5. Step 5: Solve for x
    x = 1,865,534,295.74/42,940.86
  6. Step 6: Final answer
    x = 43,444.27

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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.