Home / 56,557.50-78,051.51-31,406.46

Finding the Fourth Proportional to 56,557.50, 78,051.51 and 31,406.46

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Solution

The fourth proportional to 56,557.50, 78,051.51 and 31,406.46 is: 43,342.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,557.50 : 78,051.51 = 31,406.46 : x
  2. Step 2: Convert to fraction form
    56,557.50/78,051.51 = 31,406.46/x
  3. Step 3: Cross multiply
    56,557.50x = 78,051.51 × 31,406.46
  4. Step 4: Simplify right side
    56,557.50x = 2,451,321,626.75
  5. Step 5: Solve for x
    x = 2,451,321,626.75/56,557.50
  6. Step 6: Final answer
    x = 43,342.11

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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.