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Finding the Fourth Proportional to 45,312, 67,955.04 and 19,022.64

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Solution

The fourth proportional to 45,312, 67,955.04 and 19,022.64 is: 28,528.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,312 : 67,955.04 = 19,022.64 : x
  2. Step 2: Convert to fraction form
    45,312/67,955.04 = 19,022.64/x
  3. Step 3: Cross multiply
    45,312x = 67,955.04 × 19,022.64
  4. Step 4: Simplify right side
    45,312x = 1,292,684,262.11
  5. Step 5: Solve for x
    x = 1,292,684,262.11/45,312
  6. Step 6: Final answer
    x = 28,528.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.