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Finding the Fourth Proportional to 71,325.70, 106,988.55 and 43,332.10

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Solution

The fourth proportional to 71,325.70, 106,988.55 and 43,332.10 is: 64,998.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.70 : 106,988.55 = 43,332.10 : x
  2. Step 2: Convert to fraction form
    71,325.70/106,988.55 = 43,332.10/x
  3. Step 3: Cross multiply
    71,325.70x = 106,988.55 × 43,332.10
  4. Step 4: Simplify right side
    71,325.70x = 4,636,038,547.46
  5. Step 5: Solve for x
    x = 4,636,038,547.46/71,325.70
  6. Step 6: Final answer
    x = 64,998.15

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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.