Home / 91,868.34-126,792.18-56,079.18

Finding the Fourth Proportional to 91,868.34, 126,792.18 and 56,079.18

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Solution

The fourth proportional to 91,868.34, 126,792.18 and 56,079.18 is: 77,397.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,868.34 : 126,792.18 = 56,079.18 : x
  2. Step 2: Convert to fraction form
    91,868.34/126,792.18 = 56,079.18/x
  3. Step 3: Cross multiply
    91,868.34x = 126,792.18 × 56,079.18
  4. Step 4: Simplify right side
    91,868.34x = 7,110,401,484.81
  5. Step 5: Solve for x
    x = 7,110,401,484.81/91,868.34
  6. Step 6: Final answer
    x = 77,397.74

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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.