Home / 56,901.06-78,522.36-31,405.93

Finding the Fourth Proportional to 56,901.06, 78,522.36 and 31,405.93

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Solution

The fourth proportional to 56,901.06, 78,522.36 and 31,405.93 is: 43,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,901.06 : 78,522.36 = 31,405.93 : x
  2. Step 2: Convert to fraction form
    56,901.06/78,522.36 = 31,405.93/x
  3. Step 3: Cross multiply
    56,901.06x = 78,522.36 × 31,405.93
  4. Step 4: Simplify right side
    56,901.06x = 2,466,067,741.59
  5. Step 5: Solve for x
    x = 2,466,067,741.59/56,901.06
  6. Step 6: Final answer
    x = 43,339.57

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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.