Home / 66,411.13-91,647.40-37,730.84

Finding the Fourth Proportional to 66,411.13, 91,647.40 and 37,730.84

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Solution

The fourth proportional to 66,411.13, 91,647.40 and 37,730.84 is: 52,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,411.13 : 91,647.40 = 37,730.84 : x
  2. Step 2: Convert to fraction form
    66,411.13/91,647.40 = 37,730.84/x
  3. Step 3: Cross multiply
    66,411.13x = 91,647.40 × 37,730.84
  4. Step 4: Simplify right side
    66,411.13x = 3,457,933,699.18
  5. Step 5: Solve for x
    x = 3,457,933,699.18/66,411.13
  6. Step 6: Final answer
    x = 52,068.58

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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.