Home / 71,263.62-98,339.70-39,430.92

Finding the Fourth Proportional to 71,263.62, 98,339.70 and 39,430.92

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Solution

The fourth proportional to 71,263.62, 98,339.70 and 39,430.92 is: 54,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,263.62 : 98,339.70 = 39,430.92 : x
  2. Step 2: Convert to fraction form
    71,263.62/98,339.70 = 39,430.92/x
  3. Step 3: Cross multiply
    71,263.62x = 98,339.70 × 39,430.92
  4. Step 4: Simplify right side
    71,263.62x = 3,877,624,843.52
  5. Step 5: Solve for x
    x = 3,877,624,843.52/71,263.62
  6. Step 6: Final answer
    x = 54,412.40

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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.