Home / 86,704.20-130,056.30-42,308.10

Finding the Fourth Proportional to 86,704.20, 130,056.30 and 42,308.10

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Solution

The fourth proportional to 86,704.20, 130,056.30 and 42,308.10 is: 63,462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,704.20 : 130,056.30 = 42,308.10 : x
  2. Step 2: Convert to fraction form
    86,704.20/130,056.30 = 42,308.10/x
  3. Step 3: Cross multiply
    86,704.20x = 130,056.30 × 42,308.10
  4. Step 4: Simplify right side
    86,704.20x = 5,502,434,946.03
  5. Step 5: Solve for x
    x = 5,502,434,946.03/86,704.20
  6. Step 6: Final answer
    x = 63,462.15

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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.