Home / 74,830.79-103,240.44-47,988.10

Finding the Fourth Proportional to 74,830.79, 103,240.44 and 47,988.10

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Solution

The fourth proportional to 74,830.79, 103,240.44 and 47,988.10 is: 66,206.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,830.79 : 103,240.44 = 47,988.10 : x
  2. Step 2: Convert to fraction form
    74,830.79/103,240.44 = 47,988.10/x
  3. Step 3: Cross multiply
    74,830.79x = 103,240.44 × 47,988.10
  4. Step 4: Simplify right side
    74,830.79x = 4,954,312,558.76
  5. Step 5: Solve for x
    x = 4,954,312,558.76/74,830.79
  6. Step 6: Final answer
    x = 66,206.87

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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.