Home / 56,706.16-78,255.48-31,213.60

Finding the Fourth Proportional to 56,706.16, 78,255.48 and 31,213.60

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Solution

The fourth proportional to 56,706.16, 78,255.48 and 31,213.60 is: 43,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,706.16 : 78,255.48 = 31,213.60 : x
  2. Step 2: Convert to fraction form
    56,706.16/78,255.48 = 31,213.60/x
  3. Step 3: Cross multiply
    56,706.16x = 78,255.48 × 31,213.60
  4. Step 4: Simplify right side
    56,706.16x = 2,442,635,250.53
  5. Step 5: Solve for x
    x = 2,442,635,250.53/56,706.16
  6. Step 6: Final answer
    x = 43,075.31

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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.