Home / 56,712.03-78,261.84-31,561.53

Finding the Fourth Proportional to 56,712.03, 78,261.84 and 31,561.53

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Solution

The fourth proportional to 56,712.03, 78,261.84 and 31,561.53 is: 43,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,712.03 : 78,261.84 = 31,561.53 : x
  2. Step 2: Convert to fraction form
    56,712.03/78,261.84 = 31,561.53/x
  3. Step 3: Cross multiply
    56,712.03x = 78,261.84 × 31,561.53
  4. Step 4: Simplify right side
    56,712.03x = 2,470,063,411.02
  5. Step 5: Solve for x
    x = 2,470,063,411.02/56,712.03
  6. Step 6: Final answer
    x = 43,554.49

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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.