Home / 72,636.95-108,752.45-39,237.36

Finding the Fourth Proportional to 72,636.95, 108,752.45 and 39,237.36

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Solution

The fourth proportional to 72,636.95, 108,752.45 and 39,237.36 is: 58,746.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,636.95 : 108,752.45 = 39,237.36 : x
  2. Step 2: Convert to fraction form
    72,636.95/108,752.45 = 39,237.36/x
  3. Step 3: Cross multiply
    72,636.95x = 108,752.45 × 39,237.36
  4. Step 4: Simplify right side
    72,636.95x = 4,267,159,149.61
  5. Step 5: Solve for x
    x = 4,267,159,149.61/72,636.95
  6. Step 6: Final answer
    x = 58,746.40

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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.