Home / 56,817.28-78,411.36-31,323.52

Finding the Fourth Proportional to 56,817.28, 78,411.36 and 31,323.52

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Solution

The fourth proportional to 56,817.28, 78,411.36 and 31,323.52 is: 43,228.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,817.28 : 78,411.36 = 31,323.52 : x
  2. Step 2: Convert to fraction form
    56,817.28/78,411.36 = 31,323.52/x
  3. Step 3: Cross multiply
    56,817.28x = 78,411.36 × 31,323.52
  4. Step 4: Simplify right side
    56,817.28x = 2,456,119,803.19
  5. Step 5: Solve for x
    x = 2,456,119,803.19/56,817.28
  6. Step 6: Final answer
    x = 43,228.39

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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.