Home / 83,775.88-115,637.66-53,642.35

Finding the Fourth Proportional to 83,775.88, 115,637.66 and 53,642.35

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Solution

The fourth proportional to 83,775.88, 115,637.66 and 53,642.35 is: 74,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,775.88 : 115,637.66 = 53,642.35 : x
  2. Step 2: Convert to fraction form
    83,775.88/115,637.66 = 53,642.35/x
  3. Step 3: Cross multiply
    83,775.88x = 115,637.66 × 53,642.35
  4. Step 4: Simplify right side
    83,775.88x = 6,203,075,830.90
  5. Step 5: Solve for x
    x = 6,203,075,830.90/83,775.88
  6. Step 6: Final answer
    x = 74,043.70

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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.