Home / 56,986.93-78,637.84-31,492.99

Finding the Fourth Proportional to 56,986.93, 78,637.84 and 31,492.99

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Solution

The fourth proportional to 56,986.93, 78,637.84 and 31,492.99 is: 43,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.93 : 78,637.84 = 31,492.99 : x
  2. Step 2: Convert to fraction form
    56,986.93/78,637.84 = 31,492.99/x
  3. Step 3: Cross multiply
    56,986.93x = 78,637.84 × 31,492.99
  4. Step 4: Simplify right side
    56,986.93x = 2,476,540,708.74
  5. Step 5: Solve for x
    x = 2,476,540,708.74/56,986.93
  6. Step 6: Final answer
    x = 43,458.05

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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.