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Finding the Fourth Proportional to 72,784.08, 100,468.08 and 44,492.40

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Solution

The fourth proportional to 72,784.08, 100,468.08 and 44,492.40 is: 61,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,784.08 : 100,468.08 = 44,492.40 : x
  2. Step 2: Convert to fraction form
    72,784.08/100,468.08 = 44,492.40/x
  3. Step 3: Cross multiply
    72,784.08x = 100,468.08 × 44,492.40
  4. Step 4: Simplify right side
    72,784.08x = 4,470,066,002.59
  5. Step 5: Solve for x
    x = 4,470,066,002.59/72,784.08
  6. Step 6: Final answer
    x = 61,415.44

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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.