Home / 61,686.08-92,681.28-39,509.12

Finding the Fourth Proportional to 61,686.08, 92,681.28 and 39,509.12

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Solution

The fourth proportional to 61,686.08, 92,681.28 and 39,509.12 is: 59,361.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,686.08 : 92,681.28 = 39,509.12 : x
  2. Step 2: Convert to fraction form
    61,686.08/92,681.28 = 39,509.12/x
  3. Step 3: Cross multiply
    61,686.08x = 92,681.28 × 39,509.12
  4. Step 4: Simplify right side
    61,686.08x = 3,661,755,813.27
  5. Step 5: Solve for x
    x = 3,661,755,813.27/61,686.08
  6. Step 6: Final answer
    x = 59,361.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.