Home / 42,748.16-64,135.14-12,763.37

Finding the Fourth Proportional to 42,748.16, 64,135.14 and 12,763.37

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Solution

The fourth proportional to 42,748.16, 64,135.14 and 12,763.37 is: 19,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748.16 : 64,135.14 = 12,763.37 : x
  2. Step 2: Convert to fraction form
    42,748.16/64,135.14 = 12,763.37/x
  3. Step 3: Cross multiply
    42,748.16x = 64,135.14 × 12,763.37
  4. Step 4: Simplify right side
    42,748.16x = 818,580,521.82
  5. Step 5: Solve for x
    x = 818,580,521.82/42,748.16
  6. Step 6: Final answer
    x = 19,148.91

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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.