Home / 85,834.17-118,495.77-66,671.01

Finding the Fourth Proportional to 85,834.17, 118,495.77 and 66,671.01

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Solution

The fourth proportional to 85,834.17, 118,495.77 and 66,671.01 is: 92,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,834.17 : 118,495.77 = 66,671.01 : x
  2. Step 2: Convert to fraction form
    85,834.17/118,495.77 = 66,671.01/x
  3. Step 3: Cross multiply
    85,834.17x = 118,495.77 × 66,671.01
  4. Step 4: Simplify right side
    85,834.17x = 7,900,232,666.63
  5. Step 5: Solve for x
    x = 7,900,232,666.63/85,834.17
  6. Step 6: Final answer
    x = 92,040.65

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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.