Home / 55,151.04-76,108.64-30,000.64

Finding the Fourth Proportional to 55,151.04, 76,108.64 and 30,000.64

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Solution

The fourth proportional to 55,151.04, 76,108.64 and 30,000.64 is: 41,400.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,151.04 : 76,108.64 = 30,000.64 : x
  2. Step 2: Convert to fraction form
    55,151.04/76,108.64 = 30,000.64/x
  3. Step 3: Cross multiply
    55,151.04x = 76,108.64 × 30,000.64
  4. Step 4: Simplify right side
    55,151.04x = 2,283,307,909.53
  5. Step 5: Solve for x
    x = 2,283,307,909.53/55,151.04
  6. Step 6: Final answer
    x = 41,400.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.