Home / 81,526.01-112,507.07-61,071.84

Finding the Fourth Proportional to 81,526.01, 112,507.07 and 61,071.84

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Solution

The fourth proportional to 81,526.01, 112,507.07 and 61,071.84 is: 84,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,526.01 : 112,507.07 = 61,071.84 : x
  2. Step 2: Convert to fraction form
    81,526.01/112,507.07 = 61,071.84/x
  3. Step 3: Cross multiply
    81,526.01x = 112,507.07 × 61,071.84
  4. Step 4: Simplify right side
    81,526.01x = 6,871,013,644.31
  5. Step 5: Solve for x
    x = 6,871,013,644.31/81,526.01
  6. Step 6: Final answer
    x = 84,280.02

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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.