Home / 72,428.44-100,088.34-54,492.28

Finding the Fourth Proportional to 72,428.44, 100,088.34 and 54,492.28

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Solution

The fourth proportional to 72,428.44, 100,088.34 and 54,492.28 is: 75,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,428.44 : 100,088.34 = 54,492.28 : x
  2. Step 2: Convert to fraction form
    72,428.44/100,088.34 = 54,492.28/x
  3. Step 3: Cross multiply
    72,428.44x = 100,088.34 × 54,492.28
  4. Step 4: Simplify right side
    72,428.44x = 5,454,041,848.02
  5. Step 5: Solve for x
    x = 5,454,041,848.02/72,428.44
  6. Step 6: Final answer
    x = 75,302.49

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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.