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Finding the Fourth Proportional to 83,501.34, 115,240.10 and 47,696.70

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Solution

The fourth proportional to 83,501.34, 115,240.10 and 47,696.70 is: 65,826.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,501.34 : 115,240.10 = 47,696.70 : x
  2. Step 2: Convert to fraction form
    83,501.34/115,240.10 = 47,696.70/x
  3. Step 3: Cross multiply
    83,501.34x = 115,240.10 × 47,696.70
  4. Step 4: Simplify right side
    83,501.34x = 5,496,572,477.67
  5. Step 5: Solve for x
    x = 5,496,572,477.67/83,501.34
  6. Step 6: Final answer
    x = 65,826.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.