Home / 76,948.48-106,067.60-56,740.64

Finding the Fourth Proportional to 76,948.48, 106,067.60 and 56,740.64

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Solution

The fourth proportional to 76,948.48, 106,067.60 and 56,740.64 is: 78,212.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,948.48 : 106,067.60 = 56,740.64 : x
  2. Step 2: Convert to fraction form
    76,948.48/106,067.60 = 56,740.64/x
  3. Step 3: Cross multiply
    76,948.48x = 106,067.60 × 56,740.64
  4. Step 4: Simplify right side
    76,948.48x = 6,018,343,507.26
  5. Step 5: Solve for x
    x = 6,018,343,507.26/76,948.48
  6. Step 6: Final answer
    x = 78,212.64

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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.