Home / 78,536.02-108,382.68-45,008.50

Finding the Fourth Proportional to 78,536.02, 108,382.68 and 45,008.50

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Solution

The fourth proportional to 78,536.02, 108,382.68 and 45,008.50 is: 62,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,536.02 : 108,382.68 = 45,008.50 : x
  2. Step 2: Convert to fraction form
    78,536.02/108,382.68 = 45,008.50/x
  3. Step 3: Cross multiply
    78,536.02x = 108,382.68 × 45,008.50
  4. Step 4: Simplify right side
    78,536.02x = 4,878,141,852.78
  5. Step 5: Solve for x
    x = 4,878,141,852.78/78,536.02
  6. Step 6: Final answer
    x = 62,113.43

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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.