Home / 105,275.02-145,283.12-57,531.44

Finding the Fourth Proportional to 105,275.02, 145,283.12 and 57,531.44

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Solution

The fourth proportional to 105,275.02, 145,283.12 and 57,531.44 is: 79,395.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,275.02 : 145,283.12 = 57,531.44 : x
  2. Step 2: Convert to fraction form
    105,275.02/145,283.12 = 57,531.44/x
  3. Step 3: Cross multiply
    105,275.02x = 145,283.12 × 57,531.44
  4. Step 4: Simplify right side
    105,275.02x = 8,358,346,983.98
  5. Step 5: Solve for x
    x = 8,358,346,983.98/105,275.02
  6. Step 6: Final answer
    x = 79,395.35

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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.