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Finding the Fourth Proportional to 60,392.80, 90,416.40 and 53,480.80

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Solution

The fourth proportional to 60,392.80, 90,416.40 and 53,480.80 is: 80,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,392.80 : 90,416.40 = 53,480.80 : x
  2. Step 2: Convert to fraction form
    60,392.80/90,416.40 = 53,480.80/x
  3. Step 3: Cross multiply
    60,392.80x = 90,416.40 × 53,480.80
  4. Step 4: Simplify right side
    60,392.80x = 4,835,541,405.12
  5. Step 5: Solve for x
    x = 4,835,541,405.12/60,392.80
  6. Step 6: Final answer
    x = 80,068.18

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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.