Home / 74,378.04-111,567.08-18,974.04

Finding the Fourth Proportional to 74,378.04, 111,567.08 and 18,974.04

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Solution

The fourth proportional to 74,378.04, 111,567.08 and 18,974.04 is: 28,461.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,378.04 : 111,567.08 = 18,974.04 : x
  2. Step 2: Convert to fraction form
    74,378.04/111,567.08 = 18,974.04/x
  3. Step 3: Cross multiply
    74,378.04x = 111,567.08 × 18,974.04
  4. Step 4: Simplify right side
    74,378.04x = 2,116,878,238.60
  5. Step 5: Solve for x
    x = 2,116,878,238.60/74,378.04
  6. Step 6: Final answer
    x = 28,461.07

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1.5x scale

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.