Home / 56,761.16-78,336.55-31,270.13

Finding the Fourth Proportional to 56,761.16, 78,336.55 and 31,270.13

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Solution

The fourth proportional to 56,761.16, 78,336.55 and 31,270.13 is: 43,156.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,761.16 : 78,336.55 = 31,270.13 : x
  2. Step 2: Convert to fraction form
    56,761.16/78,336.55 = 31,270.13/x
  3. Step 3: Cross multiply
    56,761.16x = 78,336.55 × 31,270.13
  4. Step 4: Simplify right side
    56,761.16x = 2,449,594,153.92
  5. Step 5: Solve for x
    x = 2,449,594,153.92/56,761.16
  6. Step 6: Final answer
    x = 43,156.17

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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.