Home / 92,820.45-128,196.63-62,730.03

Finding the Fourth Proportional to 92,820.45, 128,196.63 and 62,730.03

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Solution

The fourth proportional to 92,820.45, 128,196.63 and 62,730.03 is: 86,638.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,820.45 : 128,196.63 = 62,730.03 : x
  2. Step 2: Convert to fraction form
    92,820.45/128,196.63 = 62,730.03/x
  3. Step 3: Cross multiply
    92,820.45x = 128,196.63 × 62,730.03
  4. Step 4: Simplify right side
    92,820.45x = 8,041,778,445.80
  5. Step 5: Solve for x
    x = 8,041,778,445.80/92,820.45
  6. Step 6: Final answer
    x = 86,638.00

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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.