Home / 56,221.44-77,584.80-31,070.40

Finding the Fourth Proportional to 56,221.44, 77,584.80 and 31,070.40

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Solution

The fourth proportional to 56,221.44, 77,584.80 and 31,070.40 is: 42,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.44 : 77,584.80 = 31,070.40 : x
  2. Step 2: Convert to fraction form
    56,221.44/77,584.80 = 31,070.40/x
  3. Step 3: Cross multiply
    56,221.44x = 77,584.80 × 31,070.40
  4. Step 4: Simplify right side
    56,221.44x = 2,410,590,769.92
  5. Step 5: Solve for x
    x = 2,410,590,769.92/56,221.44
  6. Step 6: Final answer
    x = 42,876.72

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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.