Home / 81,436.02-112,368.63-45,627.54

Finding the Fourth Proportional to 81,436.02, 112,368.63 and 45,627.54

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Solution

The fourth proportional to 81,436.02, 112,368.63 and 45,627.54 is: 62,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.02 : 112,368.63 = 45,627.54 : x
  2. Step 2: Convert to fraction form
    81,436.02/112,368.63 = 45,627.54/x
  3. Step 3: Cross multiply
    81,436.02x = 112,368.63 × 45,627.54
  4. Step 4: Simplify right side
    81,436.02x = 5,127,104,160.07
  5. Step 5: Solve for x
    x = 5,127,104,160.07/81,436.02
  6. Step 6: Final answer
    x = 62,958.68

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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.