Home / 76,987.83-106,240.08-42,995.79

Finding the Fourth Proportional to 76,987.83, 106,240.08 and 42,995.79

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Solution

The fourth proportional to 76,987.83, 106,240.08 and 42,995.79 is: 59,332.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,987.83 : 106,240.08 = 42,995.79 : x
  2. Step 2: Convert to fraction form
    76,987.83/106,240.08 = 42,995.79/x
  3. Step 3: Cross multiply
    76,987.83x = 106,240.08 × 42,995.79
  4. Step 4: Simplify right side
    76,987.83x = 4,567,876,169.26
  5. Step 5: Solve for x
    x = 4,567,876,169.26/76,987.83
  6. Step 6: Final answer
    x = 59,332.44

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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.