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Finding the Fourth Proportional to 70,479.76, 97,313.08 and 45,373

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Solution

The fourth proportional to 70,479.76, 97,313.08 and 45,373 is: 62,647.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,479.76 : 97,313.08 = 45,373 : x
  2. Step 2: Convert to fraction form
    70,479.76/97,313.08 = 45,373/x
  3. Step 3: Cross multiply
    70,479.76x = 97,313.08 × 45,373
  4. Step 4: Simplify right side
    70,479.76x = 4,415,386,378.84
  5. Step 5: Solve for x
    x = 4,415,386,378.84/70,479.76
  6. Step 6: Final answer
    x = 62,647.58

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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.