Home / 85,985.96-118,658.95-47,743.53

Finding the Fourth Proportional to 85,985.96, 118,658.95 and 47,743.53

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Solution

The fourth proportional to 85,985.96, 118,658.95 and 47,743.53 is: 65,885.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,985.96 : 118,658.95 = 47,743.53 : x
  2. Step 2: Convert to fraction form
    85,985.96/118,658.95 = 47,743.53/x
  3. Step 3: Cross multiply
    85,985.96x = 118,658.95 × 47,743.53
  4. Step 4: Simplify right side
    85,985.96x = 5,665,197,139.09
  5. Step 5: Solve for x
    x = 5,665,197,139.09/85,985.96
  6. Step 6: Final answer
    x = 65,885.14

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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.