Home / 56,671.14-78,205.98-31,520.64

Finding the Fourth Proportional to 56,671.14, 78,205.98 and 31,520.64

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Solution

The fourth proportional to 56,671.14, 78,205.98 and 31,520.64 is: 43,498.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,671.14 : 78,205.98 = 31,520.64 : x
  2. Step 2: Convert to fraction form
    56,671.14/78,205.98 = 31,520.64/x
  3. Step 3: Cross multiply
    56,671.14x = 78,205.98 × 31,520.64
  4. Step 4: Simplify right side
    56,671.14x = 2,465,102,541.43
  5. Step 5: Solve for x
    x = 2,465,102,541.43/56,671.14
  6. Step 6: Final answer
    x = 43,498.38

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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.