Home / 78,713.37-118,011.74-47,541.33

Finding the Fourth Proportional to 78,713.37, 118,011.74 and 47,541.33

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Solution

The fourth proportional to 78,713.37, 118,011.74 and 47,541.33 is: 71,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,713.37 : 118,011.74 = 47,541.33 : x
  2. Step 2: Convert to fraction form
    78,713.37/118,011.74 = 47,541.33/x
  3. Step 3: Cross multiply
    78,713.37x = 118,011.74 × 47,541.33
  4. Step 4: Simplify right side
    78,713.37x = 5,610,434,837.51
  5. Step 5: Solve for x
    x = 5,610,434,837.51/78,713.37
  6. Step 6: Final answer
    x = 71,276.77

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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.