Home / 86,814.90-130,222.35-53,426.70

Finding the Fourth Proportional to 86,814.90, 130,222.35 and 53,426.70

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Solution

The fourth proportional to 86,814.90, 130,222.35 and 53,426.70 is: 80,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,814.90 : 130,222.35 = 53,426.70 : x
  2. Step 2: Convert to fraction form
    86,814.90/130,222.35 = 53,426.70/x
  3. Step 3: Cross multiply
    86,814.90x = 130,222.35 × 53,426.70
  4. Step 4: Simplify right side
    86,814.90x = 6,957,350,426.75
  5. Step 5: Solve for x
    x = 6,957,350,426.75/86,814.90
  6. Step 6: Final answer
    x = 80,140.05

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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.