Home / 56,221.04-77,586.60-31,072.08

Finding the Fourth Proportional to 56,221.04, 77,586.60 and 31,072.08

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Solution

The fourth proportional to 56,221.04, 77,586.60 and 31,072.08 is: 42,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.04 : 77,586.60 = 31,072.08 : x
  2. Step 2: Convert to fraction form
    56,221.04/77,586.60 = 31,072.08/x
  3. Step 3: Cross multiply
    56,221.04x = 77,586.60 × 31,072.08
  4. Step 4: Simplify right side
    56,221.04x = 2,410,777,042.13
  5. Step 5: Solve for x
    x = 2,410,777,042.13/56,221.04
  6. Step 6: Final answer
    x = 42,880.34

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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.