Home / 56,999.25-78,657.59-31,156.64

Finding the Fourth Proportional to 56,999.25, 78,657.59 and 31,156.64

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Solution

The fourth proportional to 56,999.25, 78,657.59 and 31,156.64 is: 42,995.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,999.25 : 78,657.59 = 31,156.64 : x
  2. Step 2: Convert to fraction form
    56,999.25/78,657.59 = 31,156.64/x
  3. Step 3: Cross multiply
    56,999.25x = 78,657.59 × 31,156.64
  4. Step 4: Simplify right side
    56,999.25x = 2,450,706,214.90
  5. Step 5: Solve for x
    x = 2,450,706,214.90/56,999.25
  6. Step 6: Final answer
    x = 42,995.41

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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.