Home / 56,532.71-78,015.47-31,040.19

Finding the Fourth Proportional to 56,532.71, 78,015.47 and 31,040.19

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Solution

The fourth proportional to 56,532.71, 78,015.47 and 31,040.19 is: 42,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,532.71 : 78,015.47 = 31,040.19 : x
  2. Step 2: Convert to fraction form
    56,532.71/78,015.47 = 31,040.19/x
  3. Step 3: Cross multiply
    56,532.71x = 78,015.47 × 31,040.19
  4. Step 4: Simplify right side
    56,532.71x = 2,421,614,856.54
  5. Step 5: Solve for x
    x = 2,421,614,856.54/56,532.71
  6. Step 6: Final answer
    x = 42,835.64

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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.