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Finding the Fourth Proportional to 60,407.92, 90,570.54 and 30,768.40

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Solution

The fourth proportional to 60,407.92, 90,570.54 and 30,768.40 is: 46,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,407.92 : 90,570.54 = 30,768.40 : x
  2. Step 2: Convert to fraction form
    60,407.92/90,570.54 = 30,768.40/x
  3. Step 3: Cross multiply
    60,407.92x = 90,570.54 × 30,768.40
  4. Step 4: Simplify right side
    60,407.92x = 2,786,710,602.94
  5. Step 5: Solve for x
    x = 2,786,710,602.94/60,407.92
  6. Step 6: Final answer
    x = 46,131.54

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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.