Home / 42,756.04-64,134.54-13,173.64

Finding the Fourth Proportional to 42,756.04, 64,134.54 and 13,173.64

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Solution

The fourth proportional to 42,756.04, 64,134.54 and 13,173.64 is: 19,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,756.04 : 64,134.54 = 13,173.64 : x
  2. Step 2: Convert to fraction form
    42,756.04/64,134.54 = 13,173.64/x
  3. Step 3: Cross multiply
    42,756.04x = 64,134.54 × 13,173.64
  4. Step 4: Simplify right side
    42,756.04x = 844,885,341.53
  5. Step 5: Solve for x
    x = 844,885,341.53/42,756.04
  6. Step 6: Final answer
    x = 19,760.61

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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.