Home / 52,020.63-78,031.15-12,577.68

Finding the Fourth Proportional to 52,020.63, 78,031.15 and 12,577.68

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Solution

The fourth proportional to 52,020.63, 78,031.15 and 12,577.68 is: 18,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,020.63 : 78,031.15 = 12,577.68 : x
  2. Step 2: Convert to fraction form
    52,020.63/78,031.15 = 12,577.68/x
  3. Step 3: Cross multiply
    52,020.63x = 78,031.15 × 12,577.68
  4. Step 4: Simplify right side
    52,020.63x = 981,450,803.29
  5. Step 5: Solve for x
    x = 981,450,803.29/52,020.63
  6. Step 6: Final answer
    x = 18,866.57

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1.5x scale

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.