Home / 84,712.77-126,908.78-56,547.90

Finding the Fourth Proportional to 84,712.77, 126,908.78 and 56,547.90

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Solution

The fourth proportional to 84,712.77, 126,908.78 and 56,547.90 is: 84,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,712.77 : 126,908.78 = 56,547.90 : x
  2. Step 2: Convert to fraction form
    84,712.77/126,908.78 = 56,547.90/x
  3. Step 3: Cross multiply
    84,712.77x = 126,908.78 × 56,547.90
  4. Step 4: Simplify right side
    84,712.77x = 7,176,424,717.82
  5. Step 5: Solve for x
    x = 7,176,424,717.82/84,712.77
  6. Step 6: Final answer
    x = 84,714.79

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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.