Home / 64,742.88-96,973.35-31,392.34

Finding the Fourth Proportional to 64,742.88, 96,973.35 and 31,392.34

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Solution

The fourth proportional to 64,742.88, 96,973.35 and 31,392.34 is: 47,020.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,742.88 : 96,973.35 = 31,392.34 : x
  2. Step 2: Convert to fraction form
    64,742.88/96,973.35 = 31,392.34/x
  3. Step 3: Cross multiply
    64,742.88x = 96,973.35 × 31,392.34
  4. Step 4: Simplify right side
    64,742.88x = 3,044,220,374.14
  5. Step 5: Solve for x
    x = 3,044,220,374.14/64,742.88
  6. Step 6: Final answer
    x = 47,020.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.