Home / 84,071.48-126,038.57-39,120.93

Finding the Fourth Proportional to 84,071.48, 126,038.57 and 39,120.93

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Solution

The fourth proportional to 84,071.48, 126,038.57 and 39,120.93 is: 58,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,071.48 : 126,038.57 = 39,120.93 : x
  2. Step 2: Convert to fraction form
    84,071.48/126,038.57 = 39,120.93/x
  3. Step 3: Cross multiply
    84,071.48x = 126,038.57 × 39,120.93
  4. Step 4: Simplify right side
    84,071.48x = 4,930,745,878.67
  5. Step 5: Solve for x
    x = 4,930,745,878.67/84,071.48
  6. Step 6: Final answer
    x = 58,649.45

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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.