Home / 86,834.36-130,103.02-47,419.24

Finding the Fourth Proportional to 86,834.36, 130,103.02 and 47,419.24

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Solution

The fourth proportional to 86,834.36, 130,103.02 and 47,419.24 is: 71,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,834.36 : 130,103.02 = 47,419.24 : x
  2. Step 2: Convert to fraction form
    86,834.36/130,103.02 = 47,419.24/x
  3. Step 3: Cross multiply
    86,834.36x = 130,103.02 × 47,419.24
  4. Step 4: Simplify right side
    86,834.36x = 6,169,386,330.10
  5. Step 5: Solve for x
    x = 6,169,386,330.10/86,834.36
  6. Step 6: Final answer
    x = 71,047.75

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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.