Home / 56,872.96-78,485.02-31,378.93

Finding the Fourth Proportional to 56,872.96, 78,485.02 and 31,378.93

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Solution

The fourth proportional to 56,872.96, 78,485.02 and 31,378.93 is: 43,303.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,872.96 : 78,485.02 = 31,378.93 : x
  2. Step 2: Convert to fraction form
    56,872.96/78,485.02 = 31,378.93/x
  3. Step 3: Cross multiply
    56,872.96x = 78,485.02 × 31,378.93
  4. Step 4: Simplify right side
    56,872.96x = 2,462,775,673.97
  5. Step 5: Solve for x
    x = 2,462,775,673.97/56,872.96
  6. Step 6: Final answer
    x = 43,303.11

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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.