Home / 91,807.22-137,547.72-38,381.45

Finding the Fourth Proportional to 91,807.22, 137,547.72 and 38,381.45

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Solution

The fourth proportional to 91,807.22, 137,547.72 and 38,381.45 is: 57,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,807.22 : 137,547.72 = 38,381.45 : x
  2. Step 2: Convert to fraction form
    91,807.22/137,547.72 = 38,381.45/x
  3. Step 3: Cross multiply
    91,807.22x = 137,547.72 × 38,381.45
  4. Step 4: Simplify right side
    91,807.22x = 5,279,280,250.06
  5. Step 5: Solve for x
    x = 5,279,280,250.06/91,807.22
  6. Step 6: Final answer
    x = 57,503.98

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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.