Home / 85,909.50-118,606.95-56,153.34

Finding the Fourth Proportional to 85,909.50, 118,606.95 and 56,153.34

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Solution

The fourth proportional to 85,909.50, 118,606.95 and 56,153.34 is: 77,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,909.50 : 118,606.95 = 56,153.34 : x
  2. Step 2: Convert to fraction form
    85,909.50/118,606.95 = 56,153.34/x
  3. Step 3: Cross multiply
    85,909.50x = 118,606.95 × 56,153.34
  4. Step 4: Simplify right side
    85,909.50x = 6,660,176,389.71
  5. Step 5: Solve for x
    x = 6,660,176,389.71/85,909.50
  6. Step 6: Final answer
    x = 77,525.49

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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.