Home / 86,686.04-119,612.18-52,688.68

Finding the Fourth Proportional to 86,686.04, 119,612.18 and 52,688.68

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Solution

The fourth proportional to 86,686.04, 119,612.18 and 52,688.68 is: 72,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,686.04 : 119,612.18 = 52,688.68 : x
  2. Step 2: Convert to fraction form
    86,686.04/119,612.18 = 52,688.68/x
  3. Step 3: Cross multiply
    86,686.04x = 119,612.18 × 52,688.68
  4. Step 4: Simplify right side
    86,686.04x = 6,302,207,876.12
  5. Step 5: Solve for x
    x = 6,302,207,876.12/86,686.04
  6. Step 6: Final answer
    x = 72,701.53

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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.