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Finding the Fourth Proportional to 61,942.51, 85,477.80 and 34,720.93

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Solution

The fourth proportional to 61,942.51, 85,477.80 and 34,720.93 is: 47,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,942.51 : 85,477.80 = 34,720.93 : x
  2. Step 2: Convert to fraction form
    61,942.51/85,477.80 = 34,720.93/x
  3. Step 3: Cross multiply
    61,942.51x = 85,477.80 × 34,720.93
  4. Step 4: Simplify right side
    61,942.51x = 2,967,868,710.35
  5. Step 5: Solve for x
    x = 2,967,868,710.35/61,942.51
  6. Step 6: Final answer
    x = 47,913.28

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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.