Home / 86,720.42-130,017.56-58,570.70

Finding the Fourth Proportional to 86,720.42, 130,017.56 and 58,570.70

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Solution

The fourth proportional to 86,720.42, 130,017.56 and 58,570.70 is: 87,813.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,720.42 : 130,017.56 = 58,570.70 : x
  2. Step 2: Convert to fraction form
    86,720.42/130,017.56 = 58,570.70/x
  3. Step 3: Cross multiply
    86,720.42x = 130,017.56 × 58,570.70
  4. Step 4: Simplify right side
    86,720.42x = 7,615,218,558.55
  5. Step 5: Solve for x
    x = 7,615,218,558.55/86,720.42
  6. Step 6: Final answer
    x = 87,813.44

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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.