Home / 56,856.20-78,461.86-31,363.46

Finding the Fourth Proportional to 56,856.20, 78,461.86 and 31,363.46

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Solution

The fourth proportional to 56,856.20, 78,461.86 and 31,363.46 is: 43,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,856.20 : 78,461.86 = 31,363.46 : x
  2. Step 2: Convert to fraction form
    56,856.20/78,461.86 = 31,363.46/x
  3. Step 3: Cross multiply
    56,856.20x = 78,461.86 × 31,363.46
  4. Step 4: Simplify right side
    56,856.20x = 2,460,835,407.64
  5. Step 5: Solve for x
    x = 2,460,835,407.64/56,856.20
  6. Step 6: Final answer
    x = 43,281.74

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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.