Home / 42,957.02-64,444.79-12,968.78

Finding the Fourth Proportional to 42,957.02, 64,444.79 and 12,968.78

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Solution

The fourth proportional to 42,957.02, 64,444.79 and 12,968.78 is: 19,455.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,957.02 : 64,444.79 = 12,968.78 : x
  2. Step 2: Convert to fraction form
    42,957.02/64,444.79 = 12,968.78/x
  3. Step 3: Cross multiply
    42,957.02x = 64,444.79 × 12,968.78
  4. Step 4: Simplify right side
    42,957.02x = 835,770,013.85
  5. Step 5: Solve for x
    x = 835,770,013.85/42,957.02
  6. Step 6: Final answer
    x = 19,455.96

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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.