Home / 42,772.17-64,154.12-13,182.06

Finding the Fourth Proportional to 42,772.17, 64,154.12 and 13,182.06

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Solution

The fourth proportional to 42,772.17, 64,154.12 and 13,182.06 is: 19,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,772.17 : 64,154.12 = 13,182.06 : x
  2. Step 2: Convert to fraction form
    42,772.17/64,154.12 = 13,182.06/x
  3. Step 3: Cross multiply
    42,772.17x = 64,154.12 × 13,182.06
  4. Step 4: Simplify right side
    42,772.17x = 845,683,459.09
  5. Step 5: Solve for x
    x = 845,683,459.09/42,772.17
  6. Step 6: Final answer
    x = 19,771.82

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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.