Home / 42,746.21-64,117.39-28,712.15

Finding the Fourth Proportional to 42,746.21, 64,117.39 and 28,712.15

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Solution

The fourth proportional to 42,746.21, 64,117.39 and 28,712.15 is: 43,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,746.21 : 64,117.39 = 28,712.15 : x
  2. Step 2: Convert to fraction form
    42,746.21/64,117.39 = 28,712.15/x
  3. Step 3: Cross multiply
    42,746.21x = 64,117.39 × 28,712.15
  4. Step 4: Simplify right side
    42,746.21x = 1,840,948,119.29
  5. Step 5: Solve for x
    x = 1,840,948,119.29/42,746.21
  6. Step 6: Final answer
    x = 43,066.93

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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.