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Finding the Fourth Proportional to 51,159.63, 70,603.53 and 28,805.07

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Solution

The fourth proportional to 51,159.63, 70,603.53 and 28,805.07 is: 39,752.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.63 : 70,603.53 = 28,805.07 : x
  2. Step 2: Convert to fraction form
    51,159.63/70,603.53 = 28,805.07/x
  3. Step 3: Cross multiply
    51,159.63x = 70,603.53 × 28,805.07
  4. Step 4: Simplify right side
    51,159.63x = 2,033,739,623.90
  5. Step 5: Solve for x
    x = 2,033,739,623.90/51,159.63
  6. Step 6: Final answer
    x = 39,752.82

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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.