Home / 45,492.16-68,312.48-28,072.80

Finding the Fourth Proportional to 45,492.16, 68,312.48 and 28,072.80

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Solution

The fourth proportional to 45,492.16, 68,312.48 and 28,072.80 is: 42,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,492.16 : 68,312.48 = 28,072.80 : x
  2. Step 2: Convert to fraction form
    45,492.16/68,312.48 = 28,072.80/x
  3. Step 3: Cross multiply
    45,492.16x = 68,312.48 × 28,072.80
  4. Step 4: Simplify right side
    45,492.16x = 1,917,722,588.54
  5. Step 5: Solve for x
    x = 1,917,722,588.54/45,492.16
  6. Step 6: Final answer
    x = 42,155.01

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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.