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Finding the Fourth Proportional to 90,681.52, 136,038.84 and 37,364.08

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Solution

The fourth proportional to 90,681.52, 136,038.84 and 37,364.08 is: 56,052.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,681.52 : 136,038.84 = 37,364.08 : x
  2. Step 2: Convert to fraction form
    90,681.52/136,038.84 = 37,364.08/x
  3. Step 3: Cross multiply
    90,681.52x = 136,038.84 × 37,364.08
  4. Step 4: Simplify right side
    90,681.52x = 5,082,966,100.87
  5. Step 5: Solve for x
    x = 5,082,966,100.87/90,681.52
  6. Step 6: Final answer
    x = 56,052.94

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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.