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Finding the Fourth Proportional to 66,870.72, 92,327.04 and 51,036.48

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Solution

The fourth proportional to 66,870.72, 92,327.04 and 51,036.48 is: 70,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870.72 : 92,327.04 = 51,036.48 : x
  2. Step 2: Convert to fraction form
    66,870.72/92,327.04 = 51,036.48/x
  3. Step 3: Cross multiply
    66,870.72x = 92,327.04 × 51,036.48
  4. Step 4: Simplify right side
    66,870.72x = 4,712,047,130.42
  5. Step 5: Solve for x
    x = 4,712,047,130.42/66,870.72
  6. Step 6: Final answer
    x = 70,465.03

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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.