Home / 49,904.40-74,885.40-18,742.80

Finding the Fourth Proportional to 49,904.40, 74,885.40 and 18,742.80

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Solution

The fourth proportional to 49,904.40, 74,885.40 and 18,742.80 is: 28,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,904.40 : 74,885.40 = 18,742.80 : x
  2. Step 2: Convert to fraction form
    49,904.40/74,885.40 = 18,742.80/x
  3. Step 3: Cross multiply
    49,904.40x = 74,885.40 × 18,742.80
  4. Step 4: Simplify right side
    49,904.40x = 1,403,562,075.12
  5. Step 5: Solve for x
    x = 1,403,562,075.12/49,904.40
  6. Step 6: Final answer
    x = 28,125.02

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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.