Home / 86,115.24-118,834.80-47,877.36

Finding the Fourth Proportional to 86,115.24, 118,834.80 and 47,877.36

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Solution

The fourth proportional to 86,115.24, 118,834.80 and 47,877.36 is: 66,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,115.24 : 118,834.80 = 47,877.36 : x
  2. Step 2: Convert to fraction form
    86,115.24/118,834.80 = 47,877.36/x
  3. Step 3: Cross multiply
    86,115.24x = 118,834.80 × 47,877.36
  4. Step 4: Simplify right side
    86,115.24x = 5,689,496,500.13
  5. Step 5: Solve for x
    x = 5,689,496,500.13/86,115.24
  6. Step 6: Final answer
    x = 66,068.40

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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.