Home / 72,916.21-109,492.97-45,013.63

Finding the Fourth Proportional to 72,916.21, 109,492.97 and 45,013.63

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Solution

The fourth proportional to 72,916.21, 109,492.97 and 45,013.63 is: 67,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,916.21 : 109,492.97 = 45,013.63 : x
  2. Step 2: Convert to fraction form
    72,916.21/109,492.97 = 45,013.63/x
  3. Step 3: Cross multiply
    72,916.21x = 109,492.97 × 45,013.63
  4. Step 4: Simplify right side
    72,916.21x = 4,928,676,039.18
  5. Step 5: Solve for x
    x = 4,928,676,039.18/72,916.21
  6. Step 6: Final answer
    x = 67,593.70

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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.