Home / 51,700.95-71,345.76-28,730.70

Finding the Fourth Proportional to 51,700.95, 71,345.76 and 28,730.70

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Solution

The fourth proportional to 51,700.95, 71,345.76 and 28,730.70 is: 39,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,700.95 : 71,345.76 = 28,730.70 : x
  2. Step 2: Convert to fraction form
    51,700.95/71,345.76 = 28,730.70/x
  3. Step 3: Cross multiply
    51,700.95x = 71,345.76 × 28,730.70
  4. Step 4: Simplify right side
    51,700.95x = 2,049,813,359.29
  5. Step 5: Solve for x
    x = 2,049,813,359.29/51,700.95
  6. Step 6: Final answer
    x = 39,647.50

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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.