Home / 49,661.40-74,492.10-28,666.20

Finding the Fourth Proportional to 49,661.40, 74,492.10 and 28,666.20

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Solution

The fourth proportional to 49,661.40, 74,492.10 and 28,666.20 is: 42,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,661.40 : 74,492.10 = 28,666.20 : x
  2. Step 2: Convert to fraction form
    49,661.40/74,492.10 = 28,666.20/x
  3. Step 3: Cross multiply
    49,661.40x = 74,492.10 × 28,666.20
  4. Step 4: Simplify right side
    49,661.40x = 2,135,405,437.02
  5. Step 5: Solve for x
    x = 2,135,405,437.02/49,661.40
  6. Step 6: Final answer
    x = 42,999.30

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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.