Home / 76,853.63-106,057.79-42,862.16

Finding the Fourth Proportional to 76,853.63, 106,057.79 and 42,862.16

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Solution

The fourth proportional to 76,853.63, 106,057.79 and 42,862.16 is: 59,149.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,853.63 : 106,057.79 = 42,862.16 : x
  2. Step 2: Convert to fraction form
    76,853.63/106,057.79 = 42,862.16/x
  3. Step 3: Cross multiply
    76,853.63x = 106,057.79 × 42,862.16
  4. Step 4: Simplify right side
    76,853.63x = 4,545,866,175.79
  5. Step 5: Solve for x
    x = 4,545,866,175.79/76,853.63
  6. Step 6: Final answer
    x = 59,149.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.