Home / 56,649.08-78,176.63-31,156.58

Finding the Fourth Proportional to 56,649.08, 78,176.63 and 31,156.58

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Solution

The fourth proportional to 56,649.08, 78,176.63 and 31,156.58 is: 42,996.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,649.08 : 78,176.63 = 31,156.58 : x
  2. Step 2: Convert to fraction form
    56,649.08/78,176.63 = 31,156.58/x
  3. Step 3: Cross multiply
    56,649.08x = 78,176.63 × 31,156.58
  4. Step 4: Simplify right side
    56,649.08x = 2,435,716,113.73
  5. Step 5: Solve for x
    x = 2,435,716,113.73/56,649.08
  6. Step 6: Final answer
    x = 42,996.57

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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.