Home / 74,117.65-102,548.16-64,713.55

Finding the Fourth Proportional to 74,117.65, 102,548.16 and 64,713.55

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Solution

The fourth proportional to 74,117.65, 102,548.16 and 64,713.55 is: 89,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,117.65 : 102,548.16 = 64,713.55 : x
  2. Step 2: Convert to fraction form
    74,117.65/102,548.16 = 64,713.55/x
  3. Step 3: Cross multiply
    74,117.65x = 102,548.16 × 64,713.55
  4. Step 4: Simplify right side
    74,117.65x = 6,636,255,479.57
  5. Step 5: Solve for x
    x = 6,636,255,479.57/74,117.65
  6. Step 6: Final answer
    x = 89,536.78

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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.