Home / 51,320.30-70,820.63-28,658.66

Finding the Fourth Proportional to 51,320.30, 70,820.63 and 28,658.66

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Solution

The fourth proportional to 51,320.30, 70,820.63 and 28,658.66 is: 39,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,320.30 : 70,820.63 = 28,658.66 : x
  2. Step 2: Convert to fraction form
    51,320.30/70,820.63 = 28,658.66/x
  3. Step 3: Cross multiply
    51,320.30x = 70,820.63 × 28,658.66
  4. Step 4: Simplify right side
    51,320.30x = 2,029,624,356.16
  5. Step 5: Solve for x
    x = 2,029,624,356.16/51,320.30
  6. Step 6: Final answer
    x = 39,548.18

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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.