Home / 42,746.46-64,117.76-28,712.40

Finding the Fourth Proportional to 42,746.46, 64,117.76 and 28,712.40

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Solution

The fourth proportional to 42,746.46, 64,117.76 and 28,712.40 is: 43,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,746.46 : 64,117.76 = 28,712.40 : x
  2. Step 2: Convert to fraction form
    42,746.46/64,117.76 = 28,712.40/x
  3. Step 3: Cross multiply
    42,746.46x = 64,117.76 × 28,712.40
  4. Step 4: Simplify right side
    42,746.46x = 1,840,974,772.22
  5. Step 5: Solve for x
    x = 1,840,974,772.22/42,746.46
  6. Step 6: Final answer
    x = 43,067.30

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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.