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Finding the Fourth Proportional to 60,345.40, 90,410.10 and 29,111.80

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Solution

The fourth proportional to 60,345.40, 90,410.10 and 29,111.80 is: 43,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,345.40 : 90,410.10 = 29,111.80 : x
  2. Step 2: Convert to fraction form
    60,345.40/90,410.10 = 29,111.80/x
  3. Step 3: Cross multiply
    60,345.40x = 90,410.10 × 29,111.80
  4. Step 4: Simplify right side
    60,345.40x = 2,632,000,749.18
  5. Step 5: Solve for x
    x = 2,632,000,749.18/60,345.40
  6. Step 6: Final answer
    x = 43,615.60

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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.