Home / 74,492.30-102,798.54-55,457.18

Finding the Fourth Proportional to 74,492.30, 102,798.54 and 55,457.18

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Solution

The fourth proportional to 74,492.30, 102,798.54 and 55,457.18 is: 76,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,492.30 : 102,798.54 = 55,457.18 : x
  2. Step 2: Convert to fraction form
    74,492.30/102,798.54 = 55,457.18/x
  3. Step 3: Cross multiply
    74,492.30x = 102,798.54 × 55,457.18
  4. Step 4: Simplify right side
    74,492.30x = 5,700,917,136.52
  5. Step 5: Solve for x
    x = 5,700,917,136.52/74,492.30
  6. Step 6: Final answer
    x = 76,530.29

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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.