Home / 81,374.02-112,295.46-45,564.32

Finding the Fourth Proportional to 81,374.02, 112,295.46 and 45,564.32

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Solution

The fourth proportional to 81,374.02, 112,295.46 and 45,564.32 is: 62,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,374.02 : 112,295.46 = 45,564.32 : x
  2. Step 2: Convert to fraction form
    81,374.02/112,295.46 = 45,564.32/x
  3. Step 3: Cross multiply
    81,374.02x = 112,295.46 × 45,564.32
  4. Step 4: Simplify right side
    81,374.02x = 5,116,666,725.59
  5. Step 5: Solve for x
    x = 5,116,666,725.59/81,374.02
  6. Step 6: Final answer
    x = 62,878.38

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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.