Home / 99,045.38-136,681.46-53,722.56

Finding the Fourth Proportional to 99,045.38, 136,681.46 and 53,722.56

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Solution

The fourth proportional to 99,045.38, 136,681.46 and 53,722.56 is: 74,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,045.38 : 136,681.46 = 53,722.56 : x
  2. Step 2: Convert to fraction form
    99,045.38/136,681.46 = 53,722.56/x
  3. Step 3: Cross multiply
    99,045.38x = 136,681.46 × 53,722.56
  4. Step 4: Simplify right side
    99,045.38x = 7,342,877,935.74
  5. Step 5: Solve for x
    x = 7,342,877,935.74/99,045.38
  6. Step 6: Final answer
    x = 74,136.50

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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.