Home / 56,770.84-78,347.34-31,620.28

Finding the Fourth Proportional to 56,770.84, 78,347.34 and 31,620.28

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Solution

The fourth proportional to 56,770.84, 78,347.34 and 31,620.28 is: 43,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770.84 : 78,347.34 = 31,620.28 : x
  2. Step 2: Convert to fraction form
    56,770.84/78,347.34 = 31,620.28/x
  3. Step 3: Cross multiply
    56,770.84x = 78,347.34 × 31,620.28
  4. Step 4: Simplify right side
    56,770.84x = 2,477,364,828.06
  5. Step 5: Solve for x
    x = 2,477,364,828.06/56,770.84
  6. Step 6: Final answer
    x = 43,637.98

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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.