Home / 51,547.15-71,140.07-28,889.98

Finding the Fourth Proportional to 51,547.15, 71,140.07 and 28,889.98

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Solution

The fourth proportional to 51,547.15, 71,140.07 and 28,889.98 is: 39,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,547.15 : 71,140.07 = 28,889.98 : x
  2. Step 2: Convert to fraction form
    51,547.15/71,140.07 = 28,889.98/x
  3. Step 3: Cross multiply
    51,547.15x = 71,140.07 × 28,889.98
  4. Step 4: Simplify right side
    51,547.15x = 2,055,235,055.05
  5. Step 5: Solve for x
    x = 2,055,235,055.05/51,547.15
  6. Step 6: Final answer
    x = 39,870.97

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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.