Home / 78,312.13-108,070.69-44,320

Finding the Fourth Proportional to 78,312.13, 108,070.69 and 44,320

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Solution

The fourth proportional to 78,312.13, 108,070.69 and 44,320 is: 61,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,312.13 : 108,070.69 = 44,320 : x
  2. Step 2: Convert to fraction form
    78,312.13/108,070.69 = 44,320/x
  3. Step 3: Cross multiply
    78,312.13x = 108,070.69 × 44,320
  4. Step 4: Simplify right side
    78,312.13x = 4,789,692,980.80
  5. Step 5: Solve for x
    x = 4,789,692,980.80/78,312.13
  6. Step 6: Final answer
    x = 61,161.57

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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.