Home / 56,608.35-78,120.23-31,117.49

Finding the Fourth Proportional to 56,608.35, 78,120.23 and 31,117.49

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Solution

The fourth proportional to 56,608.35, 78,120.23 and 31,117.49 is: 42,942.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,608.35 : 78,120.23 = 31,117.49 : x
  2. Step 2: Convert to fraction form
    56,608.35/78,120.23 = 31,117.49/x
  3. Step 3: Cross multiply
    56,608.35x = 78,120.23 × 31,117.49
  4. Step 4: Simplify right side
    56,608.35x = 2,430,905,475.82
  5. Step 5: Solve for x
    x = 2,430,905,475.82/56,608.35
  6. Step 6: Final answer
    x = 42,942.52

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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.