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Finding the Fourth Proportional to 61,382.80, 84,706.86 and 37,509.40

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Solution

The fourth proportional to 61,382.80, 84,706.86 and 37,509.40 is: 51,762.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,382.80 : 84,706.86 = 37,509.40 : x
  2. Step 2: Convert to fraction form
    61,382.80/84,706.86 = 37,509.40/x
  3. Step 3: Cross multiply
    61,382.80x = 84,706.86 × 37,509.40
  4. Step 4: Simplify right side
    61,382.80x = 3,177,303,494.48
  5. Step 5: Solve for x
    x = 3,177,303,494.48/61,382.80
  6. Step 6: Final answer
    x = 51,762.11

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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.