Home / 81,547.83-112,541.62-45,740.15

Finding the Fourth Proportional to 81,547.83, 112,541.62 and 45,740.15

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Solution

The fourth proportional to 81,547.83, 112,541.62 and 45,740.15 is: 63,124.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,547.83 : 112,541.62 = 45,740.15 : x
  2. Step 2: Convert to fraction form
    81,547.83/112,541.62 = 45,740.15/x
  3. Step 3: Cross multiply
    81,547.83x = 112,541.62 × 45,740.15
  4. Step 4: Simplify right side
    81,547.83x = 5,147,669,902.98
  5. Step 5: Solve for x
    x = 5,147,669,902.98/81,547.83
  6. Step 6: Final answer
    x = 63,124.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.