Home / 66,631.08-91,950.98-38,336.20

Finding the Fourth Proportional to 66,631.08, 91,950.98 and 38,336.20

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Solution

The fourth proportional to 66,631.08, 91,950.98 and 38,336.20 is: 52,904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,631.08 : 91,950.98 = 38,336.20 : x
  2. Step 2: Convert to fraction form
    66,631.08/91,950.98 = 38,336.20/x
  3. Step 3: Cross multiply
    66,631.08x = 91,950.98 × 38,336.20
  4. Step 4: Simplify right side
    66,631.08x = 3,525,051,159.48
  5. Step 5: Solve for x
    x = 3,525,051,159.48/66,631.08
  6. Step 6: Final answer
    x = 52,904.01

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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.