Home / 86,972.57-130,509.02-46,991.66

Finding the Fourth Proportional to 86,972.57, 130,509.02 and 46,991.66

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Solution

The fourth proportional to 86,972.57, 130,509.02 and 46,991.66 is: 70,514.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,972.57 : 130,509.02 = 46,991.66 : x
  2. Step 2: Convert to fraction form
    86,972.57/130,509.02 = 46,991.66/x
  3. Step 3: Cross multiply
    86,972.57x = 130,509.02 × 46,991.66
  4. Step 4: Simplify right side
    86,972.57x = 6,132,835,494.77
  5. Step 5: Solve for x
    x = 6,132,835,494.77/86,972.57
  6. Step 6: Final answer
    x = 70,514.59

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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.