Home / 56,664.64-78,199.32-31,515.76

Finding the Fourth Proportional to 56,664.64, 78,199.32 and 31,515.76

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Solution

The fourth proportional to 56,664.64, 78,199.32 and 31,515.76 is: 43,492.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,664.64 : 78,199.32 = 31,515.76 : x
  2. Step 2: Convert to fraction form
    56,664.64/78,199.32 = 31,515.76/x
  3. Step 3: Cross multiply
    56,664.64x = 78,199.32 × 31,515.76
  4. Step 4: Simplify right side
    56,664.64x = 2,464,511,001.28
  5. Step 5: Solve for x
    x = 2,464,511,001.28/56,664.64
  6. Step 6: Final answer
    x = 43,492.93

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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.