Home / 52,020.10-78,030.35-12,577.15

Finding the Fourth Proportional to 52,020.10, 78,030.35 and 12,577.15

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Solution

The fourth proportional to 52,020.10, 78,030.35 and 12,577.15 is: 18,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,020.10 : 78,030.35 = 12,577.15 : x
  2. Step 2: Convert to fraction form
    52,020.10/78,030.35 = 12,577.15/x
  3. Step 3: Cross multiply
    52,020.10x = 78,030.35 × 12,577.15
  4. Step 4: Simplify right side
    52,020.10x = 981,399,416.50
  5. Step 5: Solve for x
    x = 981,399,416.50/52,020.10
  6. Step 6: Final answer
    x = 18,865.77

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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.