Home / 85,943.15-118,599.75-47,700.45

Finding the Fourth Proportional to 85,943.15, 118,599.75 and 47,700.45

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Solution

The fourth proportional to 85,943.15, 118,599.75 and 47,700.45 is: 65,825.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,943.15 : 118,599.75 = 47,700.45 : x
  2. Step 2: Convert to fraction form
    85,943.15/118,599.75 = 47,700.45/x
  3. Step 3: Cross multiply
    85,943.15x = 118,599.75 × 47,700.45
  4. Step 4: Simplify right side
    85,943.15x = 5,657,260,851.89
  5. Step 5: Solve for x
    x = 5,657,260,851.89/85,943.15
  6. Step 6: Final answer
    x = 65,825.62

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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.