Home / 86,706.62-130,070.36-30,535.12

Finding the Fourth Proportional to 86,706.62, 130,070.36 and 30,535.12

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Solution

The fourth proportional to 86,706.62, 130,070.36 and 30,535.12 is: 45,806.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,706.62 : 130,070.36 = 30,535.12 : x
  2. Step 2: Convert to fraction form
    86,706.62/130,070.36 = 30,535.12/x
  3. Step 3: Cross multiply
    86,706.62x = 130,070.36 × 30,535.12
  4. Step 4: Simplify right side
    86,706.62x = 3,971,713,573.19
  5. Step 5: Solve for x
    x = 3,971,713,573.19/86,706.62
  6. Step 6: Final answer
    x = 45,806.35

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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.