Home / 93,859.20-129,528-51,417.76

Finding the Fourth Proportional to 93,859.20, 129,528 and 51,417.76

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Solution

The fourth proportional to 93,859.20, 129,528 and 51,417.76 is: 70,957.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,859.20 : 129,528 = 51,417.76 : x
  2. Step 2: Convert to fraction form
    93,859.20/129,528 = 51,417.76/x
  3. Step 3: Cross multiply
    93,859.20x = 129,528 × 51,417.76
  4. Step 4: Simplify right side
    93,859.20x = 6,660,039,617.28
  5. Step 5: Solve for x
    x = 6,660,039,617.28/93,859.20
  6. Step 6: Final answer
    x = 70,957.77

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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.