Home / 72,829.40-100,492.04-66,943.38

Finding the Fourth Proportional to 72,829.40, 100,492.04 and 66,943.38

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Solution

The fourth proportional to 72,829.40, 100,492.04 and 66,943.38 is: 92,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,829.40 : 100,492.04 = 66,943.38 : x
  2. Step 2: Convert to fraction form
    72,829.40/100,492.04 = 66,943.38/x
  3. Step 3: Cross multiply
    72,829.40x = 100,492.04 × 66,943.38
  4. Step 4: Simplify right side
    72,829.40x = 6,727,276,799.63
  5. Step 5: Solve for x
    x = 6,727,276,799.63/72,829.40
  6. Step 6: Final answer
    x = 92,370.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.