Home / 85,897.78-118,538.58-48,172.06

Finding the Fourth Proportional to 85,897.78, 118,538.58 and 48,172.06

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Solution

The fourth proportional to 85,897.78, 118,538.58 and 48,172.06 is: 66,477.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,897.78 : 118,538.58 = 48,172.06 : x
  2. Step 2: Convert to fraction form
    85,897.78/118,538.58 = 48,172.06/x
  3. Step 3: Cross multiply
    85,897.78x = 118,538.58 × 48,172.06
  4. Step 4: Simplify right side
    85,897.78x = 5,710,247,588.07
  5. Step 5: Solve for x
    x = 5,710,247,588.07/85,897.78
  6. Step 6: Final answer
    x = 66,477.24

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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.