Home / 66,752.16-92,111.68-39,889.32

Finding the Fourth Proportional to 66,752.16, 92,111.68 and 39,889.32

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Solution

The fourth proportional to 66,752.16, 92,111.68 and 39,889.32 is: 55,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,752.16 : 92,111.68 = 39,889.32 : x
  2. Step 2: Convert to fraction form
    66,752.16/92,111.68 = 39,889.32/x
  3. Step 3: Cross multiply
    66,752.16x = 92,111.68 × 39,889.32
  4. Step 4: Simplify right side
    66,752.16x = 3,674,272,279.26
  5. Step 5: Solve for x
    x = 3,674,272,279.26/66,752.16
  6. Step 6: Final answer
    x = 55,043.50

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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.