Home / 42,712.56-64,077.66-14,634.72

Finding the Fourth Proportional to 42,712.56, 64,077.66 and 14,634.72

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Solution

The fourth proportional to 42,712.56, 64,077.66 and 14,634.72 is: 21,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,712.56 : 64,077.66 = 14,634.72 : x
  2. Step 2: Convert to fraction form
    42,712.56/64,077.66 = 14,634.72/x
  3. Step 3: Cross multiply
    42,712.56x = 64,077.66 × 14,634.72
  4. Step 4: Simplify right side
    42,712.56x = 937,758,612.36
  5. Step 5: Solve for x
    x = 937,758,612.36/42,712.56
  6. Step 6: Final answer
    x = 21,955.10

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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.