Home / 56,390.16-77,818.50-31,239.84

Finding the Fourth Proportional to 56,390.16, 77,818.50 and 31,239.84

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Solution

The fourth proportional to 56,390.16, 77,818.50 and 31,239.84 is: 43,111.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,390.16 : 77,818.50 = 31,239.84 : x
  2. Step 2: Convert to fraction form
    56,390.16/77,818.50 = 31,239.84/x
  3. Step 3: Cross multiply
    56,390.16x = 77,818.50 × 31,239.84
  4. Step 4: Simplify right side
    56,390.16x = 2,431,037,489.04
  5. Step 5: Solve for x
    x = 2,431,037,489.04/56,390.16
  6. Step 6: Final answer
    x = 43,111.02

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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.