Home / 86,706.53-130,070.21-30,535.02

Finding the Fourth Proportional to 86,706.53, 130,070.21 and 30,535.02

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Solution

The fourth proportional to 86,706.53, 130,070.21 and 30,535.02 is: 45,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,706.53 : 130,070.21 = 30,535.02 : x
  2. Step 2: Convert to fraction form
    86,706.53/130,070.21 = 30,535.02/x
  3. Step 3: Cross multiply
    86,706.53x = 130,070.21 × 30,535.02
  4. Step 4: Simplify right side
    86,706.53x = 3,971,696,311.08
  5. Step 5: Solve for x
    x = 3,971,696,311.08/86,706.53
  6. Step 6: Final answer
    x = 45,806.20

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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.