Home / 92,985.18-128,319.03-52,706.56

Finding the Fourth Proportional to 92,985.18, 128,319.03 and 52,706.56

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Solution

The fourth proportional to 92,985.18, 128,319.03 and 52,706.56 is: 72,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,985.18 : 128,319.03 = 52,706.56 : x
  2. Step 2: Convert to fraction form
    92,985.18/128,319.03 = 52,706.56/x
  3. Step 3: Cross multiply
    92,985.18x = 128,319.03 × 52,706.56
  4. Step 4: Simplify right side
    92,985.18x = 6,763,254,653.84
  5. Step 5: Solve for x
    x = 6,763,254,653.84/92,985.18
  6. Step 6: Final answer
    x = 72,734.76

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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.