Home / 86,862.16-130,162.02-64,570.96

Finding the Fourth Proportional to 86,862.16, 130,162.02 and 64,570.96

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Solution

The fourth proportional to 86,862.16, 130,162.02 and 64,570.96 is: 96,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,862.16 : 130,162.02 = 64,570.96 : x
  2. Step 2: Convert to fraction form
    86,862.16/130,162.02 = 64,570.96/x
  3. Step 3: Cross multiply
    86,862.16x = 130,162.02 × 64,570.96
  4. Step 4: Simplify right side
    86,862.16x = 8,404,686,586.94
  5. Step 5: Solve for x
    x = 8,404,686,586.94/86,862.16
  6. Step 6: Final answer
    x = 96,758.89

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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.