Home / 51,030.91-76,554.57-21,457.20

Finding the Fourth Proportional to 51,030.91, 76,554.57 and 21,457.20

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Solution

The fourth proportional to 51,030.91, 76,554.57 and 21,457.20 is: 32,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,030.91 : 76,554.57 = 21,457.20 : x
  2. Step 2: Convert to fraction form
    51,030.91/76,554.57 = 21,457.20/x
  3. Step 3: Cross multiply
    51,030.91x = 76,554.57 × 21,457.20
  4. Step 4: Simplify right side
    51,030.91x = 1,642,646,966.25
  5. Step 5: Solve for x
    x = 1,642,646,966.25/51,030.91
  6. Step 6: Final answer
    x = 32,189.25

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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.