Home / 98,859.36-136,428.12-56,417.04

Finding the Fourth Proportional to 98,859.36, 136,428.12 and 56,417.04

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Solution

The fourth proportional to 98,859.36, 136,428.12 and 56,417.04 is: 77,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,859.36 : 136,428.12 = 56,417.04 : x
  2. Step 2: Convert to fraction form
    98,859.36/136,428.12 = 56,417.04/x
  3. Step 3: Cross multiply
    98,859.36x = 136,428.12 × 56,417.04
  4. Step 4: Simplify right side
    98,859.36x = 7,696,870,703.16
  5. Step 5: Solve for x
    x = 7,696,870,703.16/98,859.36
  6. Step 6: Final answer
    x = 77,856.77

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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.