Home / 76,979.44-106,225.57-42,985.27

Finding the Fourth Proportional to 76,979.44, 106,225.57 and 42,985.27

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Solution

The fourth proportional to 76,979.44, 106,225.57 and 42,985.27 is: 59,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,979.44 : 106,225.57 = 42,985.27 : x
  2. Step 2: Convert to fraction form
    76,979.44/106,225.57 = 42,985.27/x
  3. Step 3: Cross multiply
    76,979.44x = 106,225.57 × 42,985.27
  4. Step 4: Simplify right side
    76,979.44x = 4,566,134,807.35
  5. Step 5: Solve for x
    x = 4,566,134,807.35/76,979.44
  6. Step 6: Final answer
    x = 59,316.29

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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.