Home / 51,071.63-70,478.87-28,715.63

Finding the Fourth Proportional to 51,071.63, 70,478.87 and 28,715.63

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Solution

The fourth proportional to 51,071.63, 70,478.87 and 28,715.63 is: 39,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,071.63 : 70,478.87 = 28,715.63 : x
  2. Step 2: Convert to fraction form
    51,071.63/70,478.87 = 28,715.63/x
  3. Step 3: Cross multiply
    51,071.63x = 70,478.87 × 28,715.63
  4. Step 4: Simplify right side
    51,071.63x = 2,023,844,657.77
  5. Step 5: Solve for x
    x = 2,023,844,657.77/51,071.63
  6. Step 6: Final answer
    x = 39,627.58

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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.