Home / 72,089.04-108,057-42,520.80

Finding the Fourth Proportional to 72,089.04, 108,057 and 42,520.80

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Solution

The fourth proportional to 72,089.04, 108,057 and 42,520.80 is: 63,736.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,089.04 : 108,057 = 42,520.80 : x
  2. Step 2: Convert to fraction form
    72,089.04/108,057 = 42,520.80/x
  3. Step 3: Cross multiply
    72,089.04x = 108,057 × 42,520.80
  4. Step 4: Simplify right side
    72,089.04x = 4,594,670,085.60
  5. Step 5: Solve for x
    x = 4,594,670,085.60/72,089.04
  6. Step 6: Final answer
    x = 63,736.04

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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.