Home / 56,969.28-78,602.40-31,818.24

Finding the Fourth Proportional to 56,969.28, 78,602.40 and 31,818.24

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Solution

The fourth proportional to 56,969.28, 78,602.40 and 31,818.24 is: 43,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,969.28 : 78,602.40 = 31,818.24 : x
  2. Step 2: Convert to fraction form
    56,969.28/78,602.40 = 31,818.24/x
  3. Step 3: Cross multiply
    56,969.28x = 78,602.40 × 31,818.24
  4. Step 4: Simplify right side
    56,969.28x = 2,500,990,027.78
  5. Step 5: Solve for x
    x = 2,500,990,027.78/56,969.28
  6. Step 6: Final answer
    x = 43,900.68

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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.