Home / 85,699.26-128,632.02-41,357.22

Finding the Fourth Proportional to 85,699.26, 128,632.02 and 41,357.22

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Solution

The fourth proportional to 85,699.26, 128,632.02 and 41,357.22 is: 62,075.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699.26 : 128,632.02 = 41,357.22 : x
  2. Step 2: Convert to fraction form
    85,699.26/128,632.02 = 41,357.22/x
  3. Step 3: Cross multiply
    85,699.26x = 128,632.02 × 41,357.22
  4. Step 4: Simplify right side
    85,699.26x = 5,319,862,750.18
  5. Step 5: Solve for x
    x = 5,319,862,750.18/85,699.26
  6. Step 6: Final answer
    x = 62,075.95

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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.