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Finding the Fourth Proportional to 83,315.66, 114,975.13 and 45,075.09

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Solution

The fourth proportional to 83,315.66, 114,975.13 and 45,075.09 is: 62,203.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,315.66 : 114,975.13 = 45,075.09 : x
  2. Step 2: Convert to fraction form
    83,315.66/114,975.13 = 45,075.09/x
  3. Step 3: Cross multiply
    83,315.66x = 114,975.13 × 45,075.09
  4. Step 4: Simplify right side
    83,315.66x = 5,182,514,332.51
  5. Step 5: Solve for x
    x = 5,182,514,332.51/83,315.66
  6. Step 6: Final answer
    x = 62,203.36

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1.5x scale

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.