Home / 85,730.43-118,307.98-47,492.45

Finding the Fourth Proportional to 85,730.43, 118,307.98 and 47,492.45

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Solution

The fourth proportional to 85,730.43, 118,307.98 and 47,492.45 is: 65,539.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,730.43 : 118,307.98 = 47,492.45 : x
  2. Step 2: Convert to fraction form
    85,730.43/118,307.98 = 47,492.45/x
  3. Step 3: Cross multiply
    85,730.43x = 118,307.98 × 47,492.45
  4. Step 4: Simplify right side
    85,730.43x = 5,618,735,824.75
  5. Step 5: Solve for x
    x = 5,618,735,824.75/85,730.43
  6. Step 6: Final answer
    x = 65,539.57

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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.