Home / 81,331.02-112,235.69-45,521.01

Finding the Fourth Proportional to 81,331.02, 112,235.69 and 45,521.01

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Solution

The fourth proportional to 81,331.02, 112,235.69 and 45,521.01 is: 62,818.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.02 : 112,235.69 = 45,521.01 : x
  2. Step 2: Convert to fraction form
    81,331.02/112,235.69 = 45,521.01/x
  3. Step 3: Cross multiply
    81,331.02x = 112,235.69 × 45,521.01
  4. Step 4: Simplify right side
    81,331.02x = 5,109,082,080.65
  5. Step 5: Solve for x
    x = 5,109,082,080.65/81,331.02
  6. Step 6: Final answer
    x = 62,818.37

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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.