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Finding the Fourth Proportional to 61,703.42, 85,192.16 and 57,465.63

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Solution

The fourth proportional to 61,703.42, 85,192.16 and 57,465.63 is: 79,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,703.42 : 85,192.16 = 57,465.63 : x
  2. Step 2: Convert to fraction form
    61,703.42/85,192.16 = 57,465.63/x
  3. Step 3: Cross multiply
    61,703.42x = 85,192.16 × 57,465.63
  4. Step 4: Simplify right side
    61,703.42x = 4,895,620,858.13
  5. Step 5: Solve for x
    x = 4,895,620,858.13/61,703.42
  6. Step 6: Final answer
    x = 79,341.17

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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.