Home / 66,653.08-91,980.21-36,437.70

Finding the Fourth Proportional to 66,653.08, 91,980.21 and 36,437.70

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Solution

The fourth proportional to 66,653.08, 91,980.21 and 36,437.70 is: 50,283.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.08 : 91,980.21 = 36,437.70 : x
  2. Step 2: Convert to fraction form
    66,653.08/91,980.21 = 36,437.70/x
  3. Step 3: Cross multiply
    66,653.08x = 91,980.21 × 36,437.70
  4. Step 4: Simplify right side
    66,653.08x = 3,351,547,057.13
  5. Step 5: Solve for x
    x = 3,351,547,057.13/66,653.08
  6. Step 6: Final answer
    x = 50,283.46

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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.