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Finding the Fourth Proportional to 66,165.52, 91,312.50 and 37,870.60

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Solution

The fourth proportional to 66,165.52, 91,312.50 and 37,870.60 is: 52,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,165.52 : 91,312.50 = 37,870.60 : x
  2. Step 2: Convert to fraction form
    66,165.52/91,312.50 = 37,870.60/x
  3. Step 3: Cross multiply
    66,165.52x = 91,312.50 × 37,870.60
  4. Step 4: Simplify right side
    66,165.52x = 3,458,059,162.50
  5. Step 5: Solve for x
    x = 3,458,059,162.50/66,165.52
  6. Step 6: Final answer
    x = 52,263.76

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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.