Home / 56,122.86-77,447.11-30,628.58

Finding the Fourth Proportional to 56,122.86, 77,447.11 and 30,628.58

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Solution

The fourth proportional to 56,122.86, 77,447.11 and 30,628.58 is: 42,266.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,122.86 : 77,447.11 = 30,628.58 : x
  2. Step 2: Convert to fraction form
    56,122.86/77,447.11 = 30,628.58/x
  3. Step 3: Cross multiply
    56,122.86x = 77,447.11 × 30,628.58
  4. Step 4: Simplify right side
    56,122.86x = 2,372,095,004.40
  5. Step 5: Solve for x
    x = 2,372,095,004.40/56,122.86
  6. Step 6: Final answer
    x = 42,266.11

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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.