Home / 56,422.13-77,862.53-31,271.63

Finding the Fourth Proportional to 56,422.13, 77,862.53 and 31,271.63

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Solution

The fourth proportional to 56,422.13, 77,862.53 and 31,271.63 is: 43,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,422.13 : 77,862.53 = 31,271.63 : x
  2. Step 2: Convert to fraction form
    56,422.13/77,862.53 = 31,271.63/x
  3. Step 3: Cross multiply
    56,422.13x = 77,862.53 × 31,271.63
  4. Step 4: Simplify right side
    56,422.13x = 2,434,887,917.89
  5. Step 5: Solve for x
    x = 2,434,887,917.89/56,422.13
  6. Step 6: Final answer
    x = 43,154.84

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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.