Home / 66,681.18-92,030.04-38,381.40

Finding the Fourth Proportional to 66,681.18, 92,030.04 and 38,381.40

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Solution

The fourth proportional to 66,681.18, 92,030.04 and 38,381.40 is: 52,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,681.18 : 92,030.04 = 38,381.40 : x
  2. Step 2: Convert to fraction form
    66,681.18/92,030.04 = 38,381.40/x
  3. Step 3: Cross multiply
    66,681.18x = 92,030.04 × 38,381.40
  4. Step 4: Simplify right side
    66,681.18x = 3,532,241,777.26
  5. Step 5: Solve for x
    x = 3,532,241,777.26/66,681.18
  6. Step 6: Final answer
    x = 52,972.09

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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.