Home / 99,071.51-136,718.65-56,630.95

Finding the Fourth Proportional to 99,071.51, 136,718.65 and 56,630.95

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Solution

The fourth proportional to 99,071.51, 136,718.65 and 56,630.95 is: 78,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,071.51 : 136,718.65 = 56,630.95 : x
  2. Step 2: Convert to fraction form
    99,071.51/136,718.65 = 56,630.95/x
  3. Step 3: Cross multiply
    99,071.51x = 136,718.65 × 56,630.95
  4. Step 4: Simplify right side
    99,071.51x = 7,742,507,032.22
  5. Step 5: Solve for x
    x = 7,742,507,032.22/99,071.51
  6. Step 6: Final answer
    x = 78,150.69

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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.