Home / 52,211.11-72,051.40-28,337.78

Finding the Fourth Proportional to 52,211.11, 72,051.40 and 28,337.78

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Solution

The fourth proportional to 52,211.11, 72,051.40 and 28,337.78 is: 39,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,211.11 : 72,051.40 = 28,337.78 : x
  2. Step 2: Convert to fraction form
    52,211.11/72,051.40 = 28,337.78/x
  3. Step 3: Cross multiply
    52,211.11x = 72,051.40 × 28,337.78
  4. Step 4: Simplify right side
    52,211.11x = 2,041,776,721.89
  5. Step 5: Solve for x
    x = 2,041,776,721.89/52,211.11
  6. Step 6: Final answer
    x = 39,106.17

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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.