Home / 71,315.93-98,415.60-39,484.73

Finding the Fourth Proportional to 71,315.93, 98,415.60 and 39,484.73

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Solution

The fourth proportional to 71,315.93, 98,415.60 and 39,484.73 is: 54,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,315.93 : 98,415.60 = 39,484.73 : x
  2. Step 2: Convert to fraction form
    71,315.93/98,415.60 = 39,484.73/x
  3. Step 3: Cross multiply
    71,315.93x = 98,415.60 × 39,484.73
  4. Step 4: Simplify right side
    71,315.93x = 3,885,913,393.79
  5. Step 5: Solve for x
    x = 3,885,913,393.79/71,315.93
  6. Step 6: Final answer
    x = 54,488.72

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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.