Home / 66,139.32-91,272.95-35,925.23

Finding the Fourth Proportional to 66,139.32, 91,272.95 and 35,925.23

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Solution

The fourth proportional to 66,139.32, 91,272.95 and 35,925.23 is: 49,577.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,139.32 : 91,272.95 = 35,925.23 : x
  2. Step 2: Convert to fraction form
    66,139.32/91,272.95 = 35,925.23/x
  3. Step 3: Cross multiply
    66,139.32x = 91,272.95 × 35,925.23
  4. Step 4: Simplify right side
    66,139.32x = 3,279,001,880.53
  5. Step 5: Solve for x
    x = 3,279,001,880.53/66,139.32
  6. Step 6: Final answer
    x = 49,577.19

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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.