Home / 56,998.19-78,657.75-31,157.26

Finding the Fourth Proportional to 56,998.19, 78,657.75 and 31,157.26

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Solution

The fourth proportional to 56,998.19, 78,657.75 and 31,157.26 is: 42,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.19 : 78,657.75 = 31,157.26 : x
  2. Step 2: Convert to fraction form
    56,998.19/78,657.75 = 31,157.26/x
  3. Step 3: Cross multiply
    56,998.19x = 78,657.75 × 31,157.26
  4. Step 4: Simplify right side
    56,998.19x = 2,450,759,811.98
  5. Step 5: Solve for x
    x = 2,450,759,811.98/56,998.19
  6. Step 6: Final answer
    x = 42,997.16

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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.