Home / 53,455.04-80,158.86-28,490.45

Finding the Fourth Proportional to 53,455.04, 80,158.86 and 28,490.45

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Solution

The fourth proportional to 53,455.04, 80,158.86 and 28,490.45 is: 42,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,455.04 : 80,158.86 = 28,490.45 : x
  2. Step 2: Convert to fraction form
    53,455.04/80,158.86 = 28,490.45/x
  3. Step 3: Cross multiply
    53,455.04x = 80,158.86 × 28,490.45
  4. Step 4: Simplify right side
    53,455.04x = 2,283,761,992.89
  5. Step 5: Solve for x
    x = 2,283,761,992.89/53,455.04
  6. Step 6: Final answer
    x = 42,723.04

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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.