Home / 66,106.02-91,138.18-52,539.36

Finding the Fourth Proportional to 66,106.02, 91,138.18 and 52,539.36

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Solution

The fourth proportional to 66,106.02, 91,138.18 and 52,539.36 is: 72,434.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106.02 : 91,138.18 = 52,539.36 : x
  2. Step 2: Convert to fraction form
    66,106.02/91,138.18 = 52,539.36/x
  3. Step 3: Cross multiply
    66,106.02x = 91,138.18 × 52,539.36
  4. Step 4: Simplify right side
    66,106.02x = 4,788,341,648.76
  5. Step 5: Solve for x
    x = 4,788,341,648.76/66,106.02
  6. Step 6: Final answer
    x = 72,434.28

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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.