Home / 53,261.47-79,878.37-15,812.74

Finding the Fourth Proportional to 53,261.47, 79,878.37 and 15,812.74

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Solution

The fourth proportional to 53,261.47, 79,878.37 and 15,812.74 is: 23,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,261.47 : 79,878.37 = 15,812.74 : x
  2. Step 2: Convert to fraction form
    53,261.47/79,878.37 = 15,812.74/x
  3. Step 3: Cross multiply
    53,261.47x = 79,878.37 × 15,812.74
  4. Step 4: Simplify right side
    53,261.47x = 1,263,095,896.43
  5. Step 5: Solve for x
    x = 1,263,095,896.43/53,261.47
  6. Step 6: Final answer
    x = 23,715.00

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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.