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Finding the Fourth Proportional to 84,710.51, 127,033.35 and 28,535.50

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Solution

The fourth proportional to 84,710.51, 127,033.35 and 28,535.50 is: 42,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,710.51 : 127,033.35 = 28,535.50 : x
  2. Step 2: Convert to fraction form
    84,710.51/127,033.35 = 28,535.50/x
  3. Step 3: Cross multiply
    84,710.51x = 127,033.35 × 28,535.50
  4. Step 4: Simplify right side
    84,710.51x = 3,624,960,158.93
  5. Step 5: Solve for x
    x = 3,624,960,158.93/84,710.51
  6. Step 6: Final answer
    x = 42,792.33

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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.