Home / 53,312.18-79,770.94-42,749.90

Finding the Fourth Proportional to 53,312.18, 79,770.94 and 42,749.90

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Solution

The fourth proportional to 53,312.18, 79,770.94 and 42,749.90 is: 63,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,312.18 : 79,770.94 = 42,749.90 : x
  2. Step 2: Convert to fraction form
    53,312.18/79,770.94 = 42,749.90/x
  3. Step 3: Cross multiply
    53,312.18x = 79,770.94 × 42,749.90
  4. Step 4: Simplify right side
    53,312.18x = 3,410,199,707.91
  5. Step 5: Solve for x
    x = 3,410,199,707.91/53,312.18
  6. Step 6: Final answer
    x = 63,966.62

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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.