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Finding the Fourth Proportional to 51,051, 70,445.02 and 28,386.36

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Solution

The fourth proportional to 51,051, 70,445.02 and 28,386.36 is: 39,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,051 : 70,445.02 = 28,386.36 : x
  2. Step 2: Convert to fraction form
    51,051/70,445.02 = 28,386.36/x
  3. Step 3: Cross multiply
    51,051x = 70,445.02 × 28,386.36
  4. Step 4: Simplify right side
    51,051x = 1,999,677,697.93
  5. Step 5: Solve for x
    x = 1,999,677,697.93/51,051
  6. Step 6: Final answer
    x = 39,170.20

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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.