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Finding the Fourth Proportional to 61,209.16, 84,437.16 and 40,826.32

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Solution

The fourth proportional to 61,209.16, 84,437.16 and 40,826.32 is: 56,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209.16 : 84,437.16 = 40,826.32 : x
  2. Step 2: Convert to fraction form
    61,209.16/84,437.16 = 40,826.32/x
  3. Step 3: Cross multiply
    61,209.16x = 84,437.16 × 40,826.32
  4. Step 4: Simplify right side
    61,209.16x = 3,447,258,514.05
  5. Step 5: Solve for x
    x = 3,447,258,514.05/61,209.16
  6. Step 6: Final answer
    x = 56,319.32

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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.