Home / 56,905.08-78,529.03-31,411.46

Finding the Fourth Proportional to 56,905.08, 78,529.03 and 31,411.46

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Solution

The fourth proportional to 56,905.08, 78,529.03 and 31,411.46 is: 43,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,905.08 : 78,529.03 = 31,411.46 : x
  2. Step 2: Convert to fraction form
    56,905.08/78,529.03 = 31,411.46/x
  3. Step 3: Cross multiply
    56,905.08x = 78,529.03 × 31,411.46
  4. Step 4: Simplify right side
    56,905.08x = 2,466,711,370.57
  5. Step 5: Solve for x
    x = 2,466,711,370.57/56,905.08
  6. Step 6: Final answer
    x = 43,347.82

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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.