Home / 56,608.63-78,120.08-31,117.61

Finding the Fourth Proportional to 56,608.63, 78,120.08 and 31,117.61

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Solution

The fourth proportional to 56,608.63, 78,120.08 and 31,117.61 is: 42,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,608.63 : 78,120.08 = 31,117.61 : x
  2. Step 2: Convert to fraction form
    56,608.63/78,120.08 = 31,117.61/x
  3. Step 3: Cross multiply
    56,608.63x = 78,120.08 × 31,117.61
  4. Step 4: Simplify right side
    56,608.63x = 2,430,910,182.61
  5. Step 5: Solve for x
    x = 2,430,910,182.61/56,608.63
  6. Step 6: Final answer
    x = 42,942.40

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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.