Home / 56,680.40-78,217.08-31,529.36

Finding the Fourth Proportional to 56,680.40, 78,217.08 and 31,529.36

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Solution

The fourth proportional to 56,680.40, 78,217.08 and 31,529.36 is: 43,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,680.40 : 78,217.08 = 31,529.36 : x
  2. Step 2: Convert to fraction form
    56,680.40/78,217.08 = 31,529.36/x
  3. Step 3: Cross multiply
    56,680.40x = 78,217.08 × 31,529.36
  4. Step 4: Simplify right side
    56,680.40x = 2,466,134,473.47
  5. Step 5: Solve for x
    x = 2,466,134,473.47/56,680.40
  6. Step 6: Final answer
    x = 43,509.48

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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.