Home / 81,556.17-112,547.70-47,588.01

Finding the Fourth Proportional to 81,556.17, 112,547.70 and 47,588.01

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Solution

The fourth proportional to 81,556.17, 112,547.70 and 47,588.01 is: 65,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,556.17 : 112,547.70 = 47,588.01 : x
  2. Step 2: Convert to fraction form
    81,556.17/112,547.70 = 47,588.01/x
  3. Step 3: Cross multiply
    81,556.17x = 112,547.70 × 47,588.01
  4. Step 4: Simplify right side
    81,556.17x = 5,355,921,073.08
  5. Step 5: Solve for x
    x = 5,355,921,073.08/81,556.17
  6. Step 6: Final answer
    x = 65,671.56

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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.