Home / 42,718.49-64,077.33-14,257.58

Finding the Fourth Proportional to 42,718.49, 64,077.33 and 14,257.58

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Solution

The fourth proportional to 42,718.49, 64,077.33 and 14,257.58 is: 21,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,718.49 : 64,077.33 = 14,257.58 : x
  2. Step 2: Convert to fraction form
    42,718.49/64,077.33 = 14,257.58/x
  3. Step 3: Cross multiply
    42,718.49x = 64,077.33 × 14,257.58
  4. Step 4: Simplify right side
    42,718.49x = 913,587,338.27
  5. Step 5: Solve for x
    x = 913,587,338.27/42,718.49
  6. Step 6: Final answer
    x = 21,386.23

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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.