Home / 74,880.51-112,289.55-30,477.12

Finding the Fourth Proportional to 74,880.51, 112,289.55 and 30,477.12

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Solution

The fourth proportional to 74,880.51, 112,289.55 and 30,477.12 is: 45,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,880.51 : 112,289.55 = 30,477.12 : x
  2. Step 2: Convert to fraction form
    74,880.51/112,289.55 = 30,477.12/x
  3. Step 3: Cross multiply
    74,880.51x = 112,289.55 × 30,477.12
  4. Step 4: Simplify right side
    74,880.51x = 3,422,262,090.10
  5. Step 5: Solve for x
    x = 3,422,262,090.10/74,880.51
  6. Step 6: Final answer
    x = 45,702.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.