Home / 92,980.18-128,312.13-52,701.56

Finding the Fourth Proportional to 92,980.18, 128,312.13 and 52,701.56

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Solution

The fourth proportional to 92,980.18, 128,312.13 and 52,701.56 is: 72,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,980.18 : 128,312.13 = 52,701.56 : x
  2. Step 2: Convert to fraction form
    92,980.18/128,312.13 = 52,701.56/x
  3. Step 3: Cross multiply
    92,980.18x = 128,312.13 × 52,701.56
  4. Step 4: Simplify right side
    92,980.18x = 6,762,249,417.92
  5. Step 5: Solve for x
    x = 6,762,249,417.92/92,980.18
  6. Step 6: Final answer
    x = 72,727.86

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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.