Home / 85,153.47-117,513.95-47,428.53

Finding the Fourth Proportional to 85,153.47, 117,513.95 and 47,428.53

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Solution

The fourth proportional to 85,153.47, 117,513.95 and 47,428.53 is: 65,452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,153.47 : 117,513.95 = 47,428.53 : x
  2. Step 2: Convert to fraction form
    85,153.47/117,513.95 = 47,428.53/x
  3. Step 3: Cross multiply
    85,153.47x = 117,513.95 × 47,428.53
  4. Step 4: Simplify right side
    85,153.47x = 5,573,513,902.99
  5. Step 5: Solve for x
    x = 5,573,513,902.99/85,153.47
  6. Step 6: Final answer
    x = 65,452.58

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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.