Home / 85,677.78-118,239.02-47,437.32

Finding the Fourth Proportional to 85,677.78, 118,239.02 and 47,437.32

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Solution

The fourth proportional to 85,677.78, 118,239.02 and 47,437.32 is: 65,465.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,677.78 : 118,239.02 = 47,437.32 : x
  2. Step 2: Convert to fraction form
    85,677.78/118,239.02 = 47,437.32/x
  3. Step 3: Cross multiply
    85,677.78x = 118,239.02 × 47,437.32
  4. Step 4: Simplify right side
    85,677.78x = 5,608,942,717.34
  5. Step 5: Solve for x
    x = 5,608,942,717.34/85,677.78
  6. Step 6: Final answer
    x = 65,465.55

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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.