Home / 56,784.76-78,366.40-31,291.08

Finding the Fourth Proportional to 56,784.76, 78,366.40 and 31,291.08

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Solution

The fourth proportional to 56,784.76, 78,366.40 and 31,291.08 is: 43,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784.76 : 78,366.40 = 31,291.08 : x
  2. Step 2: Convert to fraction form
    56,784.76/78,366.40 = 31,291.08/x
  3. Step 3: Cross multiply
    56,784.76x = 78,366.40 × 31,291.08
  4. Step 4: Simplify right side
    56,784.76x = 2,452,169,756.84
  5. Step 5: Solve for x
    x = 2,452,169,756.84/56,784.76
  6. Step 6: Final answer
    x = 43,183.59

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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.