Home / 78,712.56-118,068.44-19,548.23

Finding the Fourth Proportional to 78,712.56, 118,068.44 and 19,548.23

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Solution

The fourth proportional to 78,712.56, 118,068.44 and 19,548.23 is: 29,322.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,712.56 : 118,068.44 = 19,548.23 : x
  2. Step 2: Convert to fraction form
    78,712.56/118,068.44 = 19,548.23/x
  3. Step 3: Cross multiply
    78,712.56x = 118,068.44 × 19,548.23
  4. Step 4: Simplify right side
    78,712.56x = 2,308,028,332.78
  5. Step 5: Solve for x
    x = 2,308,028,332.78/78,712.56
  6. Step 6: Final answer
    x = 29,322.24

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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.