Home / 81,136.08-111,967.24-45,326.10

Finding the Fourth Proportional to 81,136.08, 111,967.24 and 45,326.10

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Solution

The fourth proportional to 81,136.08, 111,967.24 and 45,326.10 is: 62,549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,136.08 : 111,967.24 = 45,326.10 : x
  2. Step 2: Convert to fraction form
    81,136.08/111,967.24 = 45,326.10/x
  3. Step 3: Cross multiply
    81,136.08x = 111,967.24 × 45,326.10
  4. Step 4: Simplify right side
    81,136.08x = 5,075,038,316.96
  5. Step 5: Solve for x
    x = 5,075,038,316.96/81,136.08
  6. Step 6: Final answer
    x = 62,549.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.