Home / 78,633.20-108,510.46-42,823.31

Finding the Fourth Proportional to 78,633.20, 108,510.46 and 42,823.31

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Solution

The fourth proportional to 78,633.20, 108,510.46 and 42,823.31 is: 59,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,633.20 : 108,510.46 = 42,823.31 : x
  2. Step 2: Convert to fraction form
    78,633.20/108,510.46 = 42,823.31/x
  3. Step 3: Cross multiply
    78,633.20x = 108,510.46 × 42,823.31
  4. Step 4: Simplify right side
    78,633.20x = 4,646,776,417.21
  5. Step 5: Solve for x
    x = 4,646,776,417.21/78,633.20
  6. Step 6: Final answer
    x = 59,094.33

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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.