Home / 56,265.87-77,643.86-31,113.75

Finding the Fourth Proportional to 56,265.87, 77,643.86 and 31,113.75

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Solution

The fourth proportional to 56,265.87, 77,643.86 and 31,113.75 is: 42,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,265.87 : 77,643.86 = 31,113.75 : x
  2. Step 2: Convert to fraction form
    56,265.87/77,643.86 = 31,113.75/x
  3. Step 3: Cross multiply
    56,265.87x = 77,643.86 × 31,113.75
  4. Step 4: Simplify right side
    56,265.87x = 2,415,791,493.51
  5. Step 5: Solve for x
    x = 2,415,791,493.51/56,265.87
  6. Step 6: Final answer
    x = 42,935.29

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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.