Home / 85,510.27-128,291.12-60,598.32

Finding the Fourth Proportional to 85,510.27, 128,291.12 and 60,598.32

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Solution

The fourth proportional to 85,510.27, 128,291.12 and 60,598.32 is: 90,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,510.27 : 128,291.12 = 60,598.32 : x
  2. Step 2: Convert to fraction form
    85,510.27/128,291.12 = 60,598.32/x
  3. Step 3: Cross multiply
    85,510.27x = 128,291.12 × 60,598.32
  4. Step 4: Simplify right side
    85,510.27x = 7,774,226,342.92
  5. Step 5: Solve for x
    x = 7,774,226,342.92/85,510.27
  6. Step 6: Final answer
    x = 90,915.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.