Home / 78,698.18-118,046.34-47,117.06

Finding the Fourth Proportional to 78,698.18, 118,046.34 and 47,117.06

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Solution

The fourth proportional to 78,698.18, 118,046.34 and 47,117.06 is: 70,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,698.18 : 118,046.34 = 47,117.06 : x
  2. Step 2: Convert to fraction form
    78,698.18/118,046.34 = 47,117.06/x
  3. Step 3: Cross multiply
    78,698.18x = 118,046.34 × 47,117.06
  4. Step 4: Simplify right side
    78,698.18x = 5,561,996,484.56
  5. Step 5: Solve for x
    x = 5,561,996,484.56/78,698.18
  6. Step 6: Final answer
    x = 70,675.03

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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.